update-lxd-image.sh

   1 #!/bin/bash
   2 #
   3 # This script will create xenial and trusty lxd images that will be used by the
   4 # lxd provider in juju 2.1+ It is for use with the lxd provider for local
   5 # development and preinstalls a common set of production packages.
   6 #
   7 # This dramatically speeds up the install hooks for lxd deploys by
   8 # pre-installing common packages. It is intended to run daily as part of
   9 # a cron job.
  10 set -eux
  11
  12 # The basic charm layer also installs all the things. 47 packages.
  13 LAYER_BASIC="gcc build-essential python3-pip python3-setuptools libyaml-dev python3-yaml python3-dev"
  14
  15 # the basic layer also installs virtualenv, but the name changed in xenial.
  16 TRUSTY_PACKAGES="python-virtualenv"
  17 XENIAL_PACKAGES="virtualenv"
  18
  19 # Predownload common packages used by your charms in development
  20 DOWNLOAD_PACKAGES=""
  21
  22 PACKAGES="$LAYER_BASIC $DOWNLOAD_PACKAGES"
  23
  24 # Packages from pypi to pre-install
  25 PYPI="charms.reactive charmhelpers paramiko>=1.16.0,<1.17"
  26
  27 function cache() {
  28     series=$1
  29     container=juju-${series}-base
  30     alias=juju/$series/amd64
  31
  32     lxc delete $container -f || true
  33     lxc launch ubuntu:$series $container
  34
  35     # Wait for the container to get an IP address
  36     lxc exec $container -- bash -c "for i in {1..60}; do sleep 1; ping -c1 10.44.127.1 &> /dev/null && break; done"
  37
  38     # Wait for cloud-init to finish
  39     lxc exec $container -- bash -c "while [ ! -f /var/lib/cloud/instance/boot-finished ]; do sleep 1; done"
  40
  41     lxc exec $container -- apt-get update -y
  42     lxc exec $container -- apt-get upgrade -y
  43     lxc exec $container -- apt-get install -y $PACKAGES $2
  44     lxc exec $container -- pip3 install --upgrade pip
  45     lxc exec $container -- pip3 install --upgrade $PYPI
  46     lxc stop $container
  47
  48     lxc image delete $alias || true
  49     lxc publish $container --alias $alias description="$series juju dev image ($(date +%Y%m%d))"
  50
  51     lxc delete $container -f || true
  52 }
  53
  54 cache trusty "$TRUSTY_PACKAGES"
  55 cache xenial "$XENIAL_PACKAGES"