129 lines
3.4 KiB
YAML
129 lines
3.4 KiB
YAML
# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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---
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- name: Load necessary modules
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modprobe:
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name: "{{ item }}"
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state: present
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with_items:
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- overlay
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- br_netfilter
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- name: Configure sysctl
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sysctl:
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name: "{{ item }}"
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value: "1"
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state: present
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loop:
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- net.ipv6.conf.default.disable_ipv6
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- net.ipv6.conf.all.disable_ipv6
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- net.ipv6.conf.lo.disable_ipv6
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- net.bridge.bridge-nf-call-iptables
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- net.bridge.bridge-nf-call-ip6tables
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- net.ipv4.ip_forward
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ignore_errors: true
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# This is necessary when we run dnsmasq.
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# Otherwise, we get the error:
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# failed to create inotify: Too many open files
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- name: Configure number of inotify instances
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sysctl:
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name: "fs.inotify.max_user_instances"
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value: "256"
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state: present
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ignore_errors: true
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- name: Remove swapfile from /etc/fstab
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mount:
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name: "{{ item }}"
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fstype: swap
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state: absent
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with_items:
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- swap
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- none
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- name: Disable swap
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command: swapoff -a
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when: ansible_swaptotal_mb > 0
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- name: Ensure dependencies are installed
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apt:
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name:
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- apt-transport-https
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- ca-certificates
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- gnupg2
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- ipvsadm
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- jq
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state: present
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- name: Add Kubernetes apt repository key
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apt_key:
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url: "https://pkgs.k8s.io/core:/stable:/{{ kube_version_repo }}/deb/Release.key"
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state: present
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- name: Add Kubernetes apt repository
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apt_repository:
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repo: "deb https://pkgs.k8s.io/core:/stable:/{{ kube_version_repo }}/deb/ /"
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state: present
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filename: kubernetes.list
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- name: Install Kubernetes binaries
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apt:
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state: present
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update_cache: true
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allow_downgrade: true
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pkg:
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- "kubelet={{ kube_version }}"
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- "kubeadm={{ kube_version }}"
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- "kubectl={{ kube_version }}"
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- name: Restart kubelet
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service:
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name: kubelet
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daemon_reload: yes
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state: restarted
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- name: Disable systemd-resolved
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service:
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name: systemd-resolved
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enabled: false
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state: stopped
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- name: Configure resolv.conf
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copy:
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src: files/resolv.conf
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dest: "{{ item }}"
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loop:
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- /etc/resolv.conf
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- /run/systemd/resolve/resolv.conf
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# We download Calico manifest on all nodes because we then want to download
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# Calico images BEFORE deploying it
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- name: Download Calico manifest
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shell: |
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curl -LSs https://docs.projectcalico.org/archive/{{ calico_version }}/manifests/calico.yaml -o /tmp/calico.yaml
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sed -i -e 's#docker.io/calico/#quay.io/calico/#g' /tmp/calico.yaml
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args:
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executable: /bin/bash
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# Download images needed for calico before applying manifests, so that `kubectl wait` timeout
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# for `k8s-app=kube-dns` isn't reached by slow download speeds
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- name: Download Calico images
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shell: |
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export CONTAINER_RUNTIME_ENDPOINT=unix:///run/containerd/containerd.sock
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export IMAGE_SERVICE_ENDPOINT=unix:///run/containerd/containerd.sock
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awk '/image:/ { print $2 }' /tmp/calico.yaml | xargs -I{} crictl pull {}
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args:
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executable: /bin/bash
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...
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