lxc_test_setup

#!/bin/bash
#
# Part of Simple paas
#
# Setup a local lxd host for testing.
#

set -euo pipefail

# Constants, update for your own use.

# The hostname to use for the LXC machine.
TEST_HOST_NAME=ubuntu

# The ip address to setup for the LXC machine.
IP_ADDRESS=10.50.1.2

# The repository to clone simple-paas from.
REPOSITORY=git@github.com:singularo/simple-paas.git

# The host that has the repository for keyscan.
HOST=github.com

# The registry holding images to deploy.
REGISTRY=docker.pkg.github.com/singularo/shepherd-example-drupal

# Email address to configure host settings with.
EMAIL=bob@example.com

# B2 Bucket to create/test with.
BUCKET=localtest

# Get the current host ip to remove the ssh id.
set +e
LXC_IP=$(lxc info ${TEST_HOST_NAME} | grep "eth0:\\Winet" | grep -v inet6 | awk '{ print $3 }')
set -e

# Found existing host, cleanup.
if [ ! -z ${LXC_IP} ]; then
  echo "Destroying ${TEST_HOST_NAME} machine."
  set +e
  lxc stop ${TEST_HOST_NAME}
  lxc delete ${TEST_HOST_NAME}
  set -e

  echo "Removing ssh-key for old host."
  set +e
  ssh-keygen -f ~/.ssh/known_hosts -R ${LXC_IP}
  set -e
fi

echo "Launching a new ubuntu machine."
lxc launch ubuntu:20.04 ${TEST_HOST_NAME}

# Need to delay a bit to allow the machine to boot.
echo "Waiting"
sleep 10

echo "Setting static IP"
lxc config device add ${TEST_HOST_NAME} eth0 nic name=eth0 nictype=bridged parent=lxdbr0
lxc config device set ${TEST_HOST_NAME} eth0 ipv4.address ${IP_ADDRESS}

echo "Restarting to apply IP"
lxc restart ${TEST_HOST_NAME}

echo "Waiting"
sleep 10

echo "Installing updates & openssh server."
lxc exec ${TEST_HOST_NAME} -- apt update
lxc exec ${TEST_HOST_NAME} -- apt -y dist-upgrade
lxc exec ${TEST_HOST_NAME} -- apt -y install ssh

echo "Copy public key to make cloning etc easier."
lxc file push ~/.ssh/id_rsa.pub ubuntu/root/.ssh/authorized_keys
lxc exec ${TEST_HOST_NAME} -- chmod 0600 .ssh/authorized_keys
lxc exec ${TEST_HOST_NAME} -- chown root:root .ssh/authorized_keys

echo "Getting IP address."
LXC_IP=$(lxc info ${TEST_HOST_NAME} | grep "eth0:\\Winet" | grep -v inet6 | awk '{ print $3 }')

echo "clone repo and finish the setup."
ssh -o StrictHostKeyChecking=no root@${LXC_IP} "ssh-keyscan ${HOST} > ~/.ssh/known_hosts"
ssh root@${LXC_IP} "git clone ${REPOSITORY}"

echo "While testing, sync the repo to the host."
rsync -avzP . root@${LXC_IP}:simple-paas/

echo "Now execute the host setup script."
ssh root@${LXC_IP} -t -t "EMAIL=${EMAIL} REGISTRY=${REGISTRY} BUCKET=${BUCKET} simple-paas/host_setup"

# Let the user know we're done.
echo "ssh root@${LXC_IP} is ready for testing."
eval "ssh root@${LXC_IP}"