Tweak Swift AIO docs, update CentOS and Fedora
The Swift AIO documentation is out of date for CentOS and Fedora. This patch updates the documentation to ensure that the instructions are clear and accurate. It also cleans up a few other sections along the way and adds some new headings to make it easier to read. Some explanatory notes are added, such as the need for XFS storage and test directories. XFS tmp loopback device is moved out of the user's home directory to /srv to match storage. Change-Id: Ieb0341536b7149c99139a1cf620828eba25f4bc6 Signed-off-by: Chris Smart <chris.smart@humanservices.gov.au>
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Chris Smart
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@ -16,10 +16,11 @@ This section documents setting up a virtual machine for doing Swift
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development. The virtual machine will emulate running a four node Swift
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cluster. To begin:
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* Get a linux system server image, this guide will cover:
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* Get a Linux system server image, this guide will cover:
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* Ubuntu 14.04, 16.04 LTS
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* Fedora/CentOS
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* CentOS 7
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* Fedora
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* OpenSuse
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- Create guest virtual machine from the image.
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@ -38,6 +39,14 @@ is ``swift``, which may not exist on your system. These instructions are
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intended to allow a developer to use his/her username for
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``<your-user-name>:<your-group-name>``.
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.. note::
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For OpenSuse users, a user's primary group is ``users``, so you have 2 options:
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* Change ``${USER}:${USER}`` to ``${USER}:users`` in all references of this guide; or
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* Create a group for your username and add yourself to it::
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sudo groupadd ${USER} && sudo gpasswd -a ${USER} ${USER} && newgrp ${USER}
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-----------------------
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Installing dependencies
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-----------------------
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@ -54,9 +63,12 @@ Installing dependencies
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python-netifaces python-pip python-dnspython \
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python-mock
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* On ``yum`` based systems::
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* On ``CentOS`` (requires additional repositories)::
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sudo yum update
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sudo yum install epel-release
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sudo yum-config-manager --enable epel extras
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sudo yum install centos-release-openstack-train
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sudo yum install curl gcc memcached rsync sqlite xfsprogs git-core \
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libffi-devel xinetd liberasurecode-devel \
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openssl-devel python-setuptools \
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@ -66,6 +78,18 @@ Installing dependencies
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python-netifaces python-pip python-dns \
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python-mock
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* On ``Fedora``::
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sudo dnf update
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sudo dnf install curl gcc memcached rsync-daemon sqlite xfsprogs git-core \
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libffi-devel xinetd liberasurecode-devel \
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openssl-devel python-setuptools \
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python-coverage python-devel python-nose \
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pyxattr python-eventlet \
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python-greenlet python-paste-deploy \
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python-netifaces python-pip python-dns \
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python-mock
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* On ``OpenSuse``::
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sudo zypper install curl gcc memcached rsync sqlite3 xfsprogs git-core \
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@ -81,7 +105,13 @@ Installing dependencies
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dependencies. Later in the process setuptools/distribute or pip will install
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and/or upgrade packages.
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Next, choose either :ref:`partition-section` or :ref:`loopback-section`.
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-------------------
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Configuring storage
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-------------------
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Swift requires some space on XFS filesystems to store data and run tests.
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Choose either :ref:`partition-section` or :ref:`loopback-section`.
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.. _partition-section:
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@ -91,54 +121,29 @@ Using a partition for storage
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If you are going to use a separate partition for Swift data, be sure to add
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another device when creating the VM, and follow these instructions:
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#. Set up a single partition::
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.. note::
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The disk does not have to be ``/dev/sdb1`` (for example, it could be
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``/dev/vdb1``) however the mount point should still be ``/mnt/sdb1``.
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#. Set up a single partition on the device (this will wipe the drive)::
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sudo parted /dev/sdb mklabel msdos mkpart p xfs 0% 100%
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#. Create an XFS file system on the partition::
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sudo fdisk /dev/sdb
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sudo mkfs.xfs /dev/sdb1
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#. Edit ``/etc/fstab`` and add::
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/dev/sdb1 /mnt/sdb1 xfs noatime,nodiratime,logbufs=8 0 0
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#. Create the mount point and the individualized links::
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#. Create the Swift data mount point and test that mounting works::
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sudo mkdir /mnt/sdb1
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sudo mount /mnt/sdb1
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sudo mkdir /mnt/sdb1/1 /mnt/sdb1/2 /mnt/sdb1/3 /mnt/sdb1/4
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sudo chown ${USER}:${USER} /mnt/sdb1/*
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sudo mkdir /srv
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for x in {1..4}; do sudo ln -s /mnt/sdb1/$x /srv/$x; done
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sudo mkdir -p /srv/1/node/sdb1 /srv/1/node/sdb5 \
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/srv/2/node/sdb2 /srv/2/node/sdb6 \
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/srv/3/node/sdb3 /srv/3/node/sdb7 \
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/srv/4/node/sdb4 /srv/4/node/sdb8 \
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/var/run/swift
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sudo chown -R ${USER}:${USER} /var/run/swift
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# **Make sure to include the trailing slash after /srv/$x/**
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for x in {1..4}; do sudo chown -R ${USER}:${USER} /srv/$x/; done
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.. note::
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For OpenSuse users, a user's primary group is ``users``, so you have 2 options:
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* Change ``${USER}:${USER}`` to ``${USER}:users`` in all references of this guide; or
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* Create a group for your username and add yourself to it::
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sudo groupadd ${USER} && sudo gpasswd -a ${USER} ${USER}
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.. note::
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We create the mount points and mount the storage disk under
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/mnt/sdb1. This disk will contain one directory per simulated swift node,
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each owned by the current swift user.
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We then create symlinks to these directories under /srv.
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If the disk sdb is unmounted, files will not be written under
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/srv/\*, because the symbolic link destination /mnt/sdb1/* will not
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exist. This prevents disk sync operations from writing to the root
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partition in the event a drive is unmounted.
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sudo mount -a
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#. Next, skip to :ref:`common-dev-section`.
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.. _loopback-section:
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Using a loopback device for storage
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@ -149,7 +154,7 @@ these instructions:
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#. Create the file for the loopback device::
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sudo mkdir /srv
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sudo mkdir -p /srv
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sudo truncate -s 1GB /srv/swift-disk
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sudo mkfs.xfs /srv/swift-disk
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@ -160,75 +165,115 @@ these instructions:
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/srv/swift-disk /mnt/sdb1 xfs loop,noatime,nodiratime,logbufs=8 0 0
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#. Create the mount point and the individualized links::
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#. Create the Swift data mount point and test that mounting works::
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sudo mkdir /mnt/sdb1
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sudo mount /mnt/sdb1
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sudo mkdir /mnt/sdb1/1 /mnt/sdb1/2 /mnt/sdb1/3 /mnt/sdb1/4
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sudo chown ${USER}:${USER} /mnt/sdb1/*
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for x in {1..4}; do sudo ln -s /mnt/sdb1/$x /srv/$x; done
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sudo mkdir -p /srv/1/node/sdb1 /srv/1/node/sdb5 \
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/srv/2/node/sdb2 /srv/2/node/sdb6 \
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/srv/3/node/sdb3 /srv/3/node/sdb7 \
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/srv/4/node/sdb4 /srv/4/node/sdb8 \
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/var/run/swift
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sudo chown -R ${USER}:${USER} /var/run/swift
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# **Make sure to include the trailing slash after /srv/$x/**
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for x in {1..4}; do sudo chown -R ${USER}:${USER} /srv/$x/; done
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.. note::
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For OpenSuse users, a user's primary group is ``users``, so you have 2 options:
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* Change ``${USER}:${USER}`` to ``${USER}:users`` in all references of this guide; or
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* Create a group for your username and add yourself to it::
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sudo groupadd ${USER} && sudo gpasswd -a ${USER} ${USER}
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.. note::
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We create the mount points and mount the loopback file under
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/mnt/sdb1. This file will contain one directory per simulated swift node,
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each owned by the current swift user.
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We then create symlinks to these directories under /srv.
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If the loopback file is unmounted, files will not be written under
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/srv/\*, because the symbolic link destination /mnt/sdb1/* will not
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exist. This prevents disk sync operations from writing to the root
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partition in the event a drive is unmounted.
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sudo mount -a
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.. _common-dev-section:
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Common Post-Device Setup
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========================
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Add the following lines to ``/etc/rc.local`` (before the ``exit 0``)::
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#. Create the individualized data links::
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sudo mkdir /mnt/sdb1/1 /mnt/sdb1/2 /mnt/sdb1/3 /mnt/sdb1/4
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sudo chown ${USER}:${USER} /mnt/sdb1/*
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for x in {1..4}; do sudo ln -s /mnt/sdb1/$x /srv/$x; done
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sudo mkdir -p /srv/1/node/sdb1 /srv/1/node/sdb5 \
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/srv/2/node/sdb2 /srv/2/node/sdb6 \
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/srv/3/node/sdb3 /srv/3/node/sdb7 \
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/srv/4/node/sdb4 /srv/4/node/sdb8
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sudo mkdir -p /var/run/swift
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sudo mkdir -p /var/cache/swift /var/cache/swift2 \
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/var/cache/swift3 /var/cache/swift4
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sudo chown -R ${USER}:${USER} /var/run/swift
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sudo chown -R ${USER}:${USER} /var/cache/swift*
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# **Make sure to include the trailing slash after /srv/$x/**
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for x in {1..4}; do sudo chown -R ${USER}:${USER} /srv/$x/; done
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.. note::
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We create the mount points and mount the loopback file under
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/mnt/sdb1. This file will contain one directory per simulated Swift node,
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each owned by the current Swift user.
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We then create symlinks to these directories under /srv.
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If the disk sdb or loopback file is unmounted, files will not be written under
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/srv/\*, because the symbolic link destination /mnt/sdb1/* will not
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exist. This prevents disk sync operations from writing to the root
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partition in the event a drive is unmounted.
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#. Restore appropriate permissions on reboot.
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* On traditional Linux systems, add the following lines to ``/etc/rc.local`` (before the ``exit 0``)::
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mkdir -p /var/cache/swift /var/cache/swift2 /var/cache/swift3 /var/cache/swift4
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chown <your-user-name>:<your-group-name> /var/cache/swift*
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mkdir -p /var/run/swift
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chown <your-user-name>:<your-group-name> /var/run/swift
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Note that on some systems you might have to create ``/etc/rc.local``.
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* On CentOS and Fedora we can use systemd (rc.local is deprecated)::
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On Fedora 19 or later, you need to place these in ``/etc/rc.d/rc.local``.
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cat << EOF |sudo tee /etc/tmpfiles.d/swift.conf
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d /var/cache/swift 0755 ${USER} ${USER} - -
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d /var/cache/swift2 0755 ${USER} ${USER} - -
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d /var/cache/swift3 0755 ${USER} ${USER} - -
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d /var/cache/swift4 0755 ${USER} ${USER} - -
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d /var/run/swift 0755 ${USER} ${USER} - -
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EOF
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On OpenSuse you need to place these in ``/etc/init.d/boot.local``.
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* On OpenSuse place the lines in ``/etc/init.d/boot.local``.
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.. note::
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On some systems the rc file might need to be an executable shell script.
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Creating an XFS tmp dir
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-----------------------
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Tests require having an XFS directory available in ``/tmp`` or in the
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``TMPDIR`` environment variable. To set up ``/tmp`` with an XFS filesystem,
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do the following::
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Tests require having a directory available on an XFS filesystem. By default the
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tests use ``/tmp``, however this can be pointed elsewhere with the ``TMPDIR``
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environment variable.
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cd ~
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truncate -s 1GB xfs_file # create 1GB fil for XFS in your home directory
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mkfs.xfs xfs_file
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sudo mount -o loop,noatime,nodiratime xfs_file /tmp
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.. note::
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If your root filesystem is XFS, you can skip this section if ``/tmp`` is
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just a directory and not a mounted tmpfs. Or you could simply point to any
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existing directory owned by your user by specifying it with the ``TMPDIR``
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environment variable.
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If your root filesystem is not XFS, you should create a loopback device,
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format it with XFS and mount it. You can mount it over ``/tmp`` or to
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another location and specify it with the ``TMPDIR`` environment variable.
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* Create the file for the tmp loopback device::
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sudo mkdir -p /srv
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sudo truncate -s 1GB /srv/swift-tmp # create 1GB file for XFS in /srv
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sudo mkfs.xfs /srv/swift-tmp
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* To mount the tmp loopback device at ``/tmp``, do the following::
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sudo mount -o loop,noatime,nodiratime /srv/swift-tmp /tmp
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sudo chmod -R 1777 /tmp
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To persist this, edit and add the following to ``/etc/fstab``::
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* To persist this, edit and add the following to ``/etc/fstab``::
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/home/<your-user-name>/xfs_file /tmp xfs rw,noatime,nodiratime,attr2,inode64,noquota 0 0
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/srv/swift-tmp /tmp xfs rw,noatime,nodiratime,attr2,inode64,noquota 0 0
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* To mount the tmp loopback at an alternate location (for example, ``/mnt/tmp``),
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do the following::
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sudo mkdir -p /mnt/tmp
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sudo mount -o loop,noatime,nodiratime /srv/swift-tmp /mnt/tmp
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sudo chown ${USER}:${USER} /mnt/tmp
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* To persist this, edit and add the following to ``/etc/fstab``::
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/srv/swift-tmp /mnt/tmp xfs rw,noatime,nodiratime,attr2,inode64,noquota 0 0
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* Set your ``TMPDIR`` environment dir so that Swift looks in the right location::
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export TMPDIR=/mnt/tmp
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echo "export TMPDIR=/mnt/tmp" >> $HOME/.bashrc
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----------------
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Getting the code
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@ -247,11 +292,11 @@ Getting the code
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cd $HOME/python-swiftclient; sudo pip install -r requirements.txt; sudo python setup.py develop; cd -
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#. Check out the swift repo::
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#. Check out the Swift repo::
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git clone https://github.com/openstack/swift.git
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#. Build a development installation of swift::
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#. Build a development installation of Swift::
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cd $HOME/swift; sudo pip install --no-binary cryptography -r requirements.txt; sudo python setup.py develop; cd -
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@ -260,12 +305,12 @@ Getting the code
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wheel/binary won't work; thus we use ``--no-binary cryptography`` to build ``cryptography``
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locally.
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Fedora 19 or later users might have to perform the following if development
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installation of swift fails::
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Fedora users might have to perform the following if development
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installation of Swift fails::
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sudo pip install -U xattr
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#. Install swift's test dependencies::
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#. Install Swift's test dependencies::
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cd $HOME/swift; sudo pip install -r test-requirements.txt
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@ -284,21 +329,26 @@ Setting up rsync
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.. literalinclude:: /../saio/rsyncd.conf
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:language: ini
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#. On Ubuntu, edit the following line in ``/etc/default/rsync``::
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#. Enable rsync daemon
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* On Ubuntu, edit the following line in ``/etc/default/rsync``::
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RSYNC_ENABLE=true
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On Fedora, edit the following line in ``/etc/xinetd.d/rsync``::
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.. note::
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You might have to create the file to perform the edits.
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disable = no
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* On CentOS and Fedora, enable the systemd service::
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One might have to create the above files to perform the edits.
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sudo systemctl enable rsyncd
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* On OpenSuse, nothing needs to happen here.
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On OpenSuse, nothing needs to happen here.
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#. On platforms with SELinux in ``Enforcing`` mode, either set to ``Permissive``::
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sudo setenforce Permissive
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sudo sed -i 's/^SELINUX=.*/SELINUX=permissive/g' /etc/selinux/config
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Or just allow rsync full access::
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@ -315,16 +365,9 @@ Setting up rsync
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sudo systemctl enable rsync
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sudo systemctl start rsync
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* On Fedora, run::
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* On CentOS, Fedora and OpenSuse, run::
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sudo systemctl restart xinetd.service
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sudo systemctl enable rsyncd.service
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sudo systemctl start rsyncd.service
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* On OpenSuse, run::
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sudo systemctl enable rsyncd.service
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sudo systemctl start rsyncd.service
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sudo systemctl start rsyncd
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* On other xinetd based systems simply run::
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@ -360,8 +403,8 @@ On non-Ubuntu distros you need to ensure memcached is running::
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or::
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sudo systemctl enable memcached.service
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sudo systemctl start memcached.service
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sudo systemctl enable memcached
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sudo systemctl start memcached
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The tempauth middleware stores tokens in memcached. If memcached is not
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running, tokens cannot be validated, and accessing Swift becomes impossible.
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@ -370,16 +413,23 @@ running, tokens cannot be validated, and accessing Swift becomes impossible.
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Optional: Setting up rsyslog for individual logging
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---------------------------------------------------
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#. Install the swift rsyslogd configuration::
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Fedora and OpenSuse may not have rsyslog installed, in which case you will need
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to install it if you want to use individual logging.
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sudo cp $HOME/swift/doc/saio/rsyslog.d/10-swift.conf /etc/rsyslog.d/
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#. Install rsyslogd
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Note: OpenSuse may have the systemd logger installed, so if you want this
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to work, you need to install rsyslog::
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* On Fedora::
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sudo dnf install rsyslog
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* On OpenSuse::
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sudo zypper install rsyslog
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sudo systemctl start rsyslog.service
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sudo systemctl enable rsyslog.service
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#. Install the Swift rsyslogd configuration::
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|
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sudo cp $HOME/swift/doc/saio/rsyslog.d/10-swift.conf /etc/rsyslog.d/
|
||||
|
||||
Be sure to review that conf file to determine if you want all the logs
|
||||
in one file vs. all the logs separated out, and if you want hourly logs
|
||||
@ -410,11 +460,12 @@ Optional: Setting up rsyslog for individual logging
|
||||
sudo chmod -R g+w /var/log/swift
|
||||
sudo service rsyslog restart
|
||||
|
||||
* On Fedora and OpenSuse::
|
||||
* On CentOS, Fedora and OpenSuse::
|
||||
|
||||
sudo chown -R root:adm /var/log/swift
|
||||
sudo chmod -R g+w /var/log/swift
|
||||
sudo systemctl restart rsyslog.service
|
||||
sudo systemctl restart rsyslog
|
||||
sudo systemctl enable rsyslog
|
||||
|
||||
---------------------
|
||||
Configuring each node
|
||||
@ -544,11 +595,6 @@ Setting up scripts for running Swift
|
||||
.. literalinclude:: /../saio/bin/resetswift
|
||||
:language: bash
|
||||
|
||||
If you are using a loopback device add an environment var to
|
||||
substitute ``/dev/sdb1`` with ``/srv/swift-disk``::
|
||||
|
||||
echo "export SAIO_BLOCK_DEVICE=/srv/swift-disk" >> $HOME/.bashrc
|
||||
|
||||
If you did not set up rsyslog for individual logging, remove the ``find
|
||||
/var/log/swift...`` line::
|
||||
|
||||
@ -564,6 +610,10 @@ Setting up scripts for running Swift
|
||||
.. literalinclude:: /../../test/sample.conf
|
||||
:language: ini
|
||||
|
||||
-----------------------------------------
|
||||
Configure environment variables for Swift
|
||||
-----------------------------------------
|
||||
|
||||
#. Add an environment variable for running tests below::
|
||||
|
||||
echo "export SWIFT_TEST_CONFIG_FILE=/etc/swift/test.conf" >> $HOME/.bashrc
|
||||
@ -572,10 +622,30 @@ Setting up scripts for running Swift
|
||||
|
||||
echo "export PATH=${PATH}:$HOME/bin" >> $HOME/.bashrc
|
||||
|
||||
#. If you are using a loopback device for Swift Storage, add an environment var
|
||||
to substitute ``/dev/sdb1`` with ``/srv/swift-disk``::
|
||||
|
||||
echo "export SAIO_BLOCK_DEVICE=/srv/swift-disk" >> $HOME/.bashrc
|
||||
|
||||
#. If you are using a device other than ``/dev/sdb1`` for Swift storage (for
|
||||
example, ``/dev/vdb1``), add an environment var to substitute it::
|
||||
|
||||
echo "export SAIO_BLOCK_DEVICE=/dev/vdb1" >> $HOME/.bashrc
|
||||
|
||||
#. If you are using a location other than ``/tmp`` for Swift tmp data (for
|
||||
example, ``/mnt/tmp``), add ``TMPDIR`` environment var to set it::
|
||||
|
||||
export TMPDIR=/mnt/tmp
|
||||
echo "export TMPDIR=/mnt/tmp" >> $HOME/.bashrc
|
||||
|
||||
#. Source the above environment variables into your current environment::
|
||||
|
||||
. $HOME/.bashrc
|
||||
|
||||
--------------------------
|
||||
Constructing initial rings
|
||||
--------------------------
|
||||
|
||||
#. Construct the initial rings using the provided script::
|
||||
|
||||
remakerings
|
||||
@ -627,11 +697,15 @@ Setting up scripts for running Swift
|
||||
|
||||
#. Read more about Storage Policies and your SAIO :doc:`policies_saio`
|
||||
|
||||
-------------
|
||||
Testing Swift
|
||||
-------------
|
||||
|
||||
#. Verify the unit tests run::
|
||||
|
||||
$HOME/swift/.unittests
|
||||
|
||||
Note that the unit tests do not require any swift daemons running.
|
||||
Note that the unit tests do not require any Swift daemons running.
|
||||
|
||||
#. Start the "main" Swift daemon processes (proxy, account, container, and
|
||||
object)::
|
||||
|
||||
Loading…
Reference in New Issue
Block a user