[MyFirstApp] Gophercloud library migration
Migrating from rackspace/gophercloud to gophercloud/gophercloud library. Change-Id: Ia72a4c548e23b4225b788520d924be8e04ce5c6f
This commit is contained in:
Marcela Bonell
parent
f03fcbdc62
commit
ef14eaaf5e
@ -1,294 +1,310 @@
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package main
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import (
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"fmt"
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"io/ioutil"
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"github.com/rackspace/gophercloud"
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"github.com/rackspace/gophercloud/openstack"
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"github.com/rackspace/gophercloud/openstack/compute/v2/flavors"
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"github.com/rackspace/gophercloud/openstack/compute/v2/images"
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"github.com/rackspace/gophercloud/openstack/compute/v2/servers"
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"github.com/rackspace/gophercloud/openstack/compute/v2/extensions/floatingip"
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"github.com/rackspace/gophercloud/openstack/compute/v2/extensions/keypairs"
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"github.com/rackspace/gophercloud/openstack/compute/v2/extensions/secgroups"
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"github.com/rackspace/gophercloud/openstack/networking/v2/networks"
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"github.com/rackspace/gophercloud/openstack/networking/v2/extensions/external"
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"fmt"
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"github.com/gophercloud/gophercloud"
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"github.com/gophercloud/gophercloud/openstack"
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"github.com/gophercloud/gophercloud/openstack/compute/v2/extensions/floatingips"
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"github.com/gophercloud/gophercloud/openstack/compute/v2/extensions/keypairs"
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"github.com/gophercloud/gophercloud/openstack/compute/v2/extensions/secgroups"
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"github.com/gophercloud/gophercloud/openstack/compute/v2/flavors"
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"github.com/gophercloud/gophercloud/openstack/compute/v2/images"
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"github.com/gophercloud/gophercloud/openstack/compute/v2/servers"
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"github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/external"
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"github.com/gophercloud/gophercloud/openstack/networking/v2/networks"
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"io/ioutil"
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"os"
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)
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func main() {
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// step-1
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var authUsername string = "your_auth_username"
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var authPassword string = "your_auth_password"
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var authUrl string = "http://controller:5000"
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var projectName string = "your_project_id"
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var regionName string = "your_region_name"
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authOpts := gophercloud.AuthOptions{
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IdentityEndpoint: authUrl,
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Username: authUsername,
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Password: authPassword,
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TenantID: projectName,
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}
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provider, _ := openstack.AuthenticatedClient(authOpts)
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client, _ := openstack.NewComputeV2(provider, gophercloud.EndpointOpts{
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Region: regionName,
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})
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// step-1
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authOpts, err := openstack.AuthOptionsFromEnv()
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if err != nil {
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fmt.Println(err)
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return
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}
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// step-2
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pager := images.ListDetail(client, images.ListOpts{})
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page, _ := pager.AllPages()
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imageList, _ := images.ExtractImages(page)
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fmt.Println(imageList)
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provider, err := openstack.AuthenticatedClient(authOpts)
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if err != nil {
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fmt.Println(err)
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return
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}
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// step-3
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pager = flavors.ListDetail(client, flavors.ListOpts{})
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page, _ = pager.AllPages()
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flavorList, _ := flavors.ExtractFlavors(page)
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fmt.Println(flavorList)
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var regionName = os.Getenv("OS_REGION_NAME")
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client, err := openstack.NewComputeV2(provider, gophercloud.EndpointOpts{
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Region: regionName,
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Type: "computev21",
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})
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if err != nil {
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fmt.Println(err)
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return
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}
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// step-4
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imageID := "74e6d1ec-9a08-444c-8518-4f232446386d"
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image, _ := images.Get(client, imageID).Extract()
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fmt.Println(image)
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// step-2
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pager := images.ListDetail(client, images.ListOpts{})
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page, _ := pager.AllPages()
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imageList, _ := images.ExtractImages(page)
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fmt.Println(imageList)
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// step-5
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flavorID := "1"
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flavor, _ := flavors.Get(client, flavorID).Extract()
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fmt.Println(flavor)
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// step-3
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pager = flavors.ListDetail(client, flavors.ListOpts{})
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page, _ = pager.AllPages()
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flavorList, _ := flavors.ExtractFlavors(page)
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fmt.Println(flavorList)
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// step-6
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instanceName := "testing"
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testingInstance, _ := servers.Create(client, servers.CreateOpts{
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Name: instanceName,
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ImageRef: imageID,
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FlavorRef: flavorID,
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}).Extract()
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fmt.Println(testingInstance)
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// step-4
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imageID := "74e6d1ec-9a08-444c-8518-4f232446386d"
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image, _ := images.Get(client, imageID).Extract()
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fmt.Println(image)
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// step-7
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pager = servers.List(client, servers.ListOpts{})
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page, _ = pager.AllPages()
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serverList, _ := servers.ExtractServers(page)
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fmt.Println(serverList)
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// step-5
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flavorID := "1"
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flavor, _ := flavors.Get(client, flavorID).Extract()
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fmt.Println(flavor)
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// step-8
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servers.Delete(client, testingInstance.ID)
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// step-6
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instanceName := "testing"
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testingInstance, err := servers.Create(client, servers.CreateOpts{
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Name: instanceName,
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ImageRef: imageID,
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FlavorRef: flavorID,
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}).Extract()
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if err != nil {
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fmt.Println(err)
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return
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}
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fmt.Println(testingInstance)
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// step-9
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fmt.Println("Checking for existing SSH key pair...")
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keyPairName := "demokey"
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pubKeyFile := "~/.ssh/id_rsa.pub"
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keyPairExists := false
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// step-7
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pager = servers.List(client, servers.ListOpts{})
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page, _ = pager.AllPages()
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serverList, _ := servers.ExtractServers(page)
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fmt.Println(serverList)
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pager = keypairs.List(client)
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page, _ = pager.AllPages()
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keypairList, _ := keypairs.ExtractKeyPairs(page)
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for _, k := range keypairList {
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if k.Name == keyPairName {
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keyPairExists = true
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break
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}
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}
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// step-8
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servers.Delete(client, testingInstance.ID)
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if keyPairExists {
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fmt.Println("Keypair " + keyPairName + " already exists. Skipping import.")
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} else {
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fmt.Println("adding keypair...")
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bs, _ := ioutil.ReadFile(pubKeyFile)
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keypairs.Create(client, keypairs.CreateOpts{
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Name: keyPairName,
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PublicKey: string(bs),
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}).Extract()
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}
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// step-9
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fmt.Println("Checking for existing SSH key pair...")
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keyPairName := "demokey"
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pubKeyFile := "~/.ssh/id_rsa.pub"
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keyPairExists := false
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pager = keypairs.List(client)
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page, _ = pager.AllPages()
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keypairList, _ = keypairs.ExtractKeyPairs(page)
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fmt.Println(keypairList)
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pager = keypairs.List(client)
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page, _ = pager.AllPages()
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keypairList, _ := keypairs.ExtractKeyPairs(page)
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for _, k := range keypairList {
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if k.Name == keyPairName {
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keyPairExists = true
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break
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}
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}
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// step-10
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fmt.Println("Checking for existing security group...")
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var allInOneSecurityGroup secgroups.SecurityGroup
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securityGroupName := "all-in-one"
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securityGroupExists := false
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if keyPairExists {
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fmt.Println("Keypair " + keyPairName + " already exists. Skipping import.")
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} else {
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fmt.Println("adding keypair...")
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bs, _ := ioutil.ReadFile(pubKeyFile)
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keypairs.Create(client, keypairs.CreateOpts{
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Name: keyPairName,
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PublicKey: string(bs),
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}).Extract()
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}
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pager = secgroups.List(client)
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page, _ = pager.AllPages()
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secgroupList, _ := secgroups.ExtractSecurityGroups(page)
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for _, secGroup := range secgroupList {
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if secGroup.Name == securityGroupName {
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allInOneSecurityGroup = secGroup
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securityGroupExists = true
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break
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}
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}
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pager = keypairs.List(client)
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page, _ = pager.AllPages()
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keypairList, _ = keypairs.ExtractKeyPairs(page)
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fmt.Println(keypairList)
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if securityGroupExists {
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fmt.Println("Security Group " + allInOneSecurityGroup.Name + " already exists. Skipping creation.")
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} else {
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allInOneSecurityGroup, _ := secgroups.Create(client, secgroups.CreateOpts{
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Name: securityGroupName,
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Description: "network access for all-in-one application.",
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}).Extract()
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secgroups.CreateRule(client, secgroups.CreateRuleOpts{
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ParentGroupID: allInOneSecurityGroup.ID,
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FromPort: 80,
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ToPort: 80,
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IPProtocol: "TCP",
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CIDR: "0.0.0.0/0",
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}).Extract()
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secgroups.CreateRule(client, secgroups.CreateRuleOpts{
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ParentGroupID: allInOneSecurityGroup.ID,
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FromPort: 22,
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ToPort: 22,
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IPProtocol: "TCP",
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CIDR: "0.0.0.0/0",
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}).Extract()
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}
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// step-10
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fmt.Println("Checking for existing security group...")
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var allInOneSecurityGroup secgroups.SecurityGroup
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securityGroupName := "all-in-one"
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securityGroupExists := false
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pager = secgroups.List(client)
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page, _ = pager.AllPages()
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secgroupList, _ = secgroups.ExtractSecurityGroups(page)
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fmt.Println(secgroupList)
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pager = secgroups.List(client)
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page, _ = pager.AllPages()
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secgroupList, _ := secgroups.ExtractSecurityGroups(page)
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for _, secGroup := range secgroupList {
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if secGroup.Name == securityGroupName {
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allInOneSecurityGroup = secGroup
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securityGroupExists = true
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break
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}
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}
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// step-11
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userData := `#!/usr/bin/env bash
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curl -L -s https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.sh | bash -s -- \
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-i faafo -i messaging -r api -r worker -r demo
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`
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if securityGroupExists {
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fmt.Println("Security Group " + allInOneSecurityGroup.Name + " already exists. Skipping creation.")
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} else {
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allInOneSecurityGroup, _ := secgroups.Create(client, secgroups.CreateOpts{
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Name: securityGroupName,
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Description: "network access for all-in-one application.",
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}).Extract()
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secgroups.CreateRule(client, secgroups.CreateRuleOpts{
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ParentGroupID: allInOneSecurityGroup.ID,
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FromPort: 80,
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ToPort: 80,
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IPProtocol: "TCP",
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CIDR: "0.0.0.0/0",
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}).Extract()
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secgroups.CreateRule(client, secgroups.CreateRuleOpts{
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ParentGroupID: allInOneSecurityGroup.ID,
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FromPort: 22,
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ToPort: 22,
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IPProtocol: "TCP",
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CIDR: "0.0.0.0/0",
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}).Extract()
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}
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// step-12
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fmt.Println("Checking for existing instance...")
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instanceName = "all-in-one"
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instanceExists := false
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pager = secgroups.List(client)
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page, _ = pager.AllPages()
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secgroupList, _ = secgroups.ExtractSecurityGroups(page)
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fmt.Println(secgroupList)
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pager = servers.List(client, servers.ListOpts{})
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page, _ = pager.AllPages()
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serverList, _ = servers.ExtractServers(page)
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for _, s := range serverList {
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if s.Name == instanceName {
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testingInstance = &s
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instanceExists = true
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break
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}
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}
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// step-11
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userData := `#!/usr/bin/env bash
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curl -L -s https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.sh | bash -s -- \
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-i faafo -i messaging -r api -r worker -r demo`
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if instanceExists {
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fmt.Println("Instance " + testingInstance.Name + " already exists. Skipping creation.")
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} else {
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opts := servers.CreateOpts{
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Name: instanceName,
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ImageRef: image.ID,
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FlavorRef: flavor.ID,
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SecurityGroups: []string{securityGroupName},
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UserData: []byte(userData),
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}
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testingInstance, _ = servers.Create(client, keypairs.CreateOptsExt{
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CreateOptsBuilder: opts,
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KeyName: keyPairName,
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}).Extract()
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}
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servers.WaitForStatus(client, testingInstance.ID, "ACTIVE", 300)
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// step-12
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fmt.Println("Checking for existing instance...")
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instanceName = "all-in-one"
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instanceExists := false
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pager = servers.List(client, servers.ListOpts{})
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page, _ = pager.AllPages()
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serverList, _ = servers.ExtractServers(page)
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fmt.Println(serverList)
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pager = servers.List(client, servers.ListOpts{})
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page, _ = pager.AllPages()
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serverList, _ = servers.ExtractServers(page)
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for _, s := range serverList {
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if s.Name == instanceName {
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testingInstance = &s
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instanceExists = true
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break
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}
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}
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// step-13
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var privateIP string
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for t, addrs := range testingInstance.Addresses {
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if t != "private" || len(privateIP) != 0 {
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continue
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}
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addrs, ok := addrs.([]interface{})
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if !ok {
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continue
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}
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for _, addr := range addrs {
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a, ok := addr.(map[string]interface{})
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if !ok || a["version"].(float64) != 4 {
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continue
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}
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ip, ok := a["addr"].(string)
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if ok && len(ip) != 0 {
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privateIP = ip
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fmt.Println("Private IP found: " + privateIP)
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break
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}
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}
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}
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if instanceExists {
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fmt.Println("Instance " + testingInstance.Name + " already exists. Skipping creation.")
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} else {
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opts := servers.CreateOpts{
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Name: instanceName,
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ImageRef: image.ID,
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FlavorRef: flavor.ID,
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SecurityGroups: []string{securityGroupName},
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UserData: []byte(userData),
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}
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testingInstance, err = servers.Create(client, keypairs.CreateOptsExt{
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CreateOptsBuilder: opts,
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KeyName: keyPairName,
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}).Extract()
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if err != nil {
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fmt.Println(err)
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return
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}
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}
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servers.WaitForStatus(client, testingInstance.ID, "ACTIVE", 300)
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// step-14
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var publicIP string
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for t, addrs := range testingInstance.Addresses {
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if t != "public" || len(publicIP) != 0 {
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continue
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}
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addrs, ok := addrs.([]interface{})
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if !ok {
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continue
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}
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for _, addr := range addrs {
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a, ok := addr.(map[string]interface{})
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if !ok || a["version"].(float64) != 4 {
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continue
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}
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ip, ok := a["addr"].(string)
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if ok && len(ip) != 0 {
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publicIP = ip
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fmt.Println("Public IP found: " + publicIP)
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break
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}
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}
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}
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pager = servers.List(client, servers.ListOpts{})
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page, _ = pager.AllPages()
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serverList, _ = servers.ExtractServers(page)
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fmt.Println(serverList)
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// step-15
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fmt.Println("Checking for unused Floating IP...")
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var unusedFloatingIP string
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pager = floatingip.List(client)
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page, _ = pager.AllPages()
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floatingIPList, _ := floatingip.ExtractFloatingIPs(page)
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for _, ip := range floatingIPList {
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if ip.InstanceID == "" {
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unusedFloatingIP = ip.IP
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break
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}
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}
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// step-13
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var privateIP string
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for t, addrs := range testingInstance.Addresses {
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if t != "private" || len(privateIP) != 0 {
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continue
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}
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addrs, ok := addrs.([]interface{})
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if !ok {
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continue
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}
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for _, addr := range addrs {
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a, ok := addr.(map[string]interface{})
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if !ok || a["version"].(float64) != 4 {
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continue
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}
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ip, ok := a["addr"].(string)
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if ok && len(ip) != 0 {
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privateIP = ip
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fmt.Println("Private IP found: " + privateIP)
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break
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}
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}
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}
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networkClient, _ := openstack.NewNetworkV2(provider, gophercloud.EndpointOpts{
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Region: regionName,
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})
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// step-14
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var publicIP string
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for t, addrs := range testingInstance.Addresses {
|
||||
if t != "public" || len(publicIP) != 0 {
|
||||
continue
|
||||
}
|
||||
addrs, ok := addrs.([]interface{})
|
||||
if !ok {
|
||||
continue
|
||||
}
|
||||
for _, addr := range addrs {
|
||||
a, ok := addr.(map[string]interface{})
|
||||
if !ok || a["version"].(float64) != 4 {
|
||||
continue
|
||||
}
|
||||
ip, ok := a["addr"].(string)
|
||||
if ok && len(ip) != 0 {
|
||||
publicIP = ip
|
||||
fmt.Println("Public IP found: " + publicIP)
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pager = networks.List(networkClient, networks.ListOpts{})
|
||||
page, _ = pager.AllPages()
|
||||
poolList, _ := external.ExtractList(page)
|
||||
for _, pool := range poolList {
|
||||
if len(unusedFloatingIP) != 0 || !pool.External {
|
||||
continue
|
||||
}
|
||||
fmt.Println("Allocating new Floating IP from pool: " + pool.Name)
|
||||
f, _ := floatingip.Create(client, floatingip.CreateOpts{Pool: pool.Name}).Extract()
|
||||
unusedFloatingIP = f.IP
|
||||
}
|
||||
// step-15
|
||||
fmt.Println("Checking for unused Floating IP...")
|
||||
var unusedFloatingIP string
|
||||
pager = floatingips.List(client)
|
||||
page, _ = pager.AllPages()
|
||||
floatingIPList, _ := floatingips.ExtractFloatingIPs(page)
|
||||
for _, ip := range floatingIPList {
|
||||
if ip.InstanceID == "" {
|
||||
unusedFloatingIP = ip.IP
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
// step-16
|
||||
if len(publicIP) != 0 {
|
||||
fmt.Println("Instance " + testingInstance.Name + " already has a public ip. Skipping attachment.")
|
||||
} else {
|
||||
floatingip.Associate(client, testingInstance.ID, unusedFloatingIP)
|
||||
}
|
||||
networkClient, _ := openstack.NewNetworkV2(provider, gophercloud.EndpointOpts{
|
||||
Region: regionName,
|
||||
})
|
||||
|
||||
// step-17
|
||||
var actualIPAddress string
|
||||
if len(publicIP) != 0 {
|
||||
actualIPAddress = publicIP
|
||||
} else if len(unusedFloatingIP) != 0 {
|
||||
actualIPAddress = unusedFloatingIP
|
||||
} else {
|
||||
actualIPAddress = privateIP
|
||||
}
|
||||
pager = networks.List(networkClient, networks.ListOpts{})
|
||||
page, _ = pager.AllPages()
|
||||
poolList, _ := external.ExtractList(page)
|
||||
for _, pool := range poolList {
|
||||
if len(unusedFloatingIP) != 0 || !pool.External {
|
||||
continue
|
||||
}
|
||||
fmt.Println("Allocating new Floating IP from pool: " + pool.Name)
|
||||
f, _ := floatingips.Create(client, floatingips.CreateOpts{Pool: pool.Name}).Extract()
|
||||
unusedFloatingIP = f.IP
|
||||
}
|
||||
|
||||
fmt.Println("The Fractals app will be deployed to http://" + actualIPAddress)
|
||||
// step-16
|
||||
if len(publicIP) != 0 {
|
||||
fmt.Println("Instance " + testingInstance.Name + " already has a public ip. Skipping attachment.")
|
||||
} else {
|
||||
opts := floatingips.AssociateOpts{
|
||||
FloatingIP: unusedFloatingIP,
|
||||
}
|
||||
floatingips.AssociateInstance(client, testingInstance.ID, opts)
|
||||
}
|
||||
|
||||
// step-17
|
||||
var actualIPAddress string
|
||||
if len(publicIP) != 0 {
|
||||
actualIPAddress = publicIP
|
||||
} else if len(unusedFloatingIP) != 0 {
|
||||
actualIPAddress = unusedFloatingIP
|
||||
} else {
|
||||
actualIPAddress = privateIP
|
||||
}
|
||||
|
||||
fmt.Println("The Fractals app will be deployed to http://" + actualIPAddress)
|
||||
}
|
||||
|
||||
@ -33,3 +33,24 @@ Specify a network during instance build
|
||||
image=image_id,
|
||||
flavor=flavor_id,
|
||||
network=network_id)
|
||||
|
||||
.. only:: gophercloud
|
||||
|
||||
Add the option Networks and send its id to attach the instance to:
|
||||
|
||||
.. code-block:: go
|
||||
|
||||
opts := servers.CreateOpts {
|
||||
Name: instanceName,
|
||||
ImageRef: image.ID,
|
||||
FlavorRef: flavor.ID,
|
||||
SecurityGroups: []string{securityGroupName},
|
||||
UserData: []byte(userData),
|
||||
Networks: []servers.Network{servers.Network{UUID: networkID}},
|
||||
|
||||
}
|
||||
|
||||
testingInstance, _ = servers.Create(client, keypairs.CreateOptsExt {
|
||||
CreateOptsBuilder: opts,
|
||||
KeyName: keyPairName,
|
||||
}).Extract()
|
||||
|
||||
@ -97,9 +97,9 @@ and toolkits with the OpenStack cloud:
|
||||
Use it to write C++ or C# code for Microsoft applications.
|
||||
- https://www.nuget.org/packages/openstack.net
|
||||
* - Go
|
||||
- `gophercloud <https://github.com/rackspace/gophercloud>`_
|
||||
- `gophercloud <https://github.com/gophercloud/gophercloud>`_
|
||||
- A go-based SDK.
|
||||
Use it with multiple clouds.
|
||||
Use it to write Golang code that works with OpenStack clouds.
|
||||
- http://gophercloud.io/
|
||||
|
||||
For a list of available SDKs, see `Software Development Kits <https://wiki.openstack.org/wiki/SDKs>`_.
|
||||
@ -232,7 +232,7 @@ To interact with the cloud, you must also have
|
||||
|
||||
.. only:: gophercloud
|
||||
|
||||
`a recent version of gophercloud installed <https://godoc.org/github.com/rackspace/gophercloud>`_
|
||||
`a recent version of gophercloud installed <https://godoc.org/github.com/gophercloud/gophercloud>`_
|
||||
|
||||
|
||||
Obtain the following information from your cloud provider:
|
||||
@ -383,14 +383,14 @@ to run code snippets in your language of choice.
|
||||
|
||||
.. only:: gophercloud
|
||||
|
||||
To try it, add the following code to go file
|
||||
Use environment variables to set your cloud credentials
|
||||
|
||||
.. literalinclude:: ../samples/gophercloud/getting_started.go
|
||||
:language: go
|
||||
:start-after: step-1
|
||||
:end-before: step-2
|
||||
|
||||
.. note:: The client object accesses the Compute v2.0 service,
|
||||
.. note:: The client object accesses the Compute v2.0 service and type v2.1,
|
||||
so that version is in this tutorial.
|
||||
|
||||
Flavors and images
|
||||
|
||||
Loading…
Reference in New Issue
Block a user