Add bootstrap option to prepare-node-script

Add bootstrap option on prepare-node-script to setup juju controller on
LXD on primary node.

Signed-off-by: Guillaume Boutry <[email protected]>

.github/workflows/build-snap.yml

@@ -48,15 +48,6 @@ jobs:
           sudo apt remove --purge docker.io containerd runc -y
           sudo rm -rf /run/containerd
 
-          sudo lxd init --auto
-          sudo lxc network create br0
-          sudo lxc profile device remove default eth0
-          sudo lxc profile device add default eth0 nic network=br0 name=eth0
-          sudo lxc network delete lxdbr0
-
-          sudo snap install juju --channel 3.6/stable
-          juju bootstrap localhost lxdcloud
-
           # Allow lxd controller to reach to k8s controller on loadbalancer ip
           # sudo nft insert rule ip filter FORWARD tcp dport 17070 accept
           # sudo nft insert rule ip filter FORWARD tcp sport 17070 accept
@@ -65,9 +56,11 @@ jobs:
           # Accept all packets filtered for forward
           sudo nft chain ip filter FORWARD '{policy accept;}'
 
+          sudo snap install --channel 3.6 juju
+
           sudo snap install  ${{ needs.build.outputs.snap }} --dangerous
-          openstack.sunbeam prepare-node-script | bash -x
           sudo snap connect openstack:juju-bin juju:juju-bin
+          openstack.sunbeam prepare-node-script --bootstrap | bash -x
           sudo snap connect openstack:dot-local-share-juju
           sudo snap connect openstack:dot-config-openstack
           sudo snap connect openstack:dot-local-share-openstack

.github/workflows/test-snap.yml

@@ -66,16 +66,10 @@ jobs:
           # 2023.x, 2024.1/beta does not support k8s provider
           if [[ ! ${{ inputs.snap-channel }} =~ "2024.1/edge" && ${{ inputs.k8s-provider }} == "k8s" ]]; then echo "k8s provider not supported"; exit 1; fi
 
-          sudo lxd init --auto
-          sudo lxc network create br0
-          sudo lxc profile device remove default eth0
-          sudo lxc profile device add default eth0 nic network=br0 name=eth0
-          sudo lxc network delete lxdbr0
-
           sudo snap install juju --channel 3.6/stable
-          juju bootstrap localhost lxdcloud
 
           sudo snap install openstack --channel ${{ inputs.snap-channel }}
+          sudo snap connect openstack:juju-bin juju:juju-bin
           sudo snap set openstack k8s.provider=${{ inputs.k8s-provider }}
 
           # New manifest is applicable from 2024.1/edge
@@ -95,7 +89,7 @@ jobs:
           sed -i 's|MYSQL_ROUTER_CHARM|${{ inputs.mysql-router-charm-channel }}|' manifest.yml
           echo "Manifest used:"
           cat manifest.yml
-          sunbeam prepare-node-script | bash -x
+          sunbeam prepare-node-script --bootstrap | bash -x
           sg snap_daemon "sunbeam cluster bootstrap --manifest ./manifest.yml --accept-defaults --topology single --database ${{ inputs.multi-mysql }}"
           sg snap_daemon "sunbeam cluster list"
           # Note: Moving configure before enabling caas just to ensure caas images are not downloaded

docs/deploy-locally-built-snap.md

@@ -37,7 +37,7 @@ sudo snap alias openstack.sunbeam sunbeam
 Prepare the node:
 
 ```
-sunbeam prepare-node-script | bash -x && newgrp snap_daemon
+sunbeam prepare-node-script --bootstrap | bash -x && newgrp snap_daemon
 ```
 
 Because it's installed in dangerous mode, snap connections aren't added automatically.  This must be done after installing the Juju snap (Juju is installed by running the prepare node script above), and before we begin bootstrapping.  So add the connections now:

sunbeam-python/sunbeam/commands/prepare_node.py

@@ -16,7 +16,7 @@
 import click
 from rich.console import Console
 
-from sunbeam.versions import JUJU_CHANNEL, SUPPORTED_RELEASE
+from sunbeam.versions import JUJU_CHANNEL, LXD_CHANNEL, SUPPORTED_RELEASE
 
 console = Console()
 
@@ -111,19 +111,77 @@
 fi
 """
 
+BOOTSTRAP_TEMPLATE = f"""
+# Install the lxd snap
+sudo snap install lxd --channel {LXD_CHANNEL}
+USER=$(whoami)
+# Ensure current user is part of the LXD group
+sudo usermod --append --groups lxd $USER
+
+# Try to determine if LXD is already bootstrapped
+if [ -z "$(sudo --user $USER lxc storage list --format csv)" ];
+then
+    lxdbr=$(sudo --user $USER lxc network list --format csv | grep lxdbr0)
+    if [ -z "$lxdbr" ]; then
+        echo 'Sunbeam requires the LXD bridge to be called anything except lxdbr0'
+        exit 1
+    fi
+
+    echo 'Bootstrapping LXD'
+    cat <<EOF | sudo --user $USER lxd init --preseed
+networks:
+- config:
+    ipv4.address: auto
+    ipv6.address: none
+  name: sunbeambr0
+  project: default
+storage_pools:
+- name: default
+  driver: dir
+profiles:
+- devices:
+    eth0:
+      name: eth0
+      network: br0
+      type: nic
+    root:
+      path: /
+      pool: default
+      type: disk
+  name: default
+EOF
+fi
+# Bootstrap juju onto LXD
+echo 'Bootstrapping Juju onto LXD'
+sudo --user $USER juju show-controller
+if [ $? -eq 0 ]; then
+    sudo --user $USER juju bootstrap localhost
+fi
+"""
+
 
 @click.command()
+@click.option(
+    "--bootstrap",
+    is_flag=True,
+    help="Prepare the node for use as primary node.",
+    default=False,
+)
 @click.option(
     "--client",
     "-c",
     is_flag=True,
     help="Prepare the node for use as a client.",
     default=False,
 )
-def prepare_node_script(client: bool = False) -> None:
+def prepare_node_script(bootstrap: bool = False, client: bool = False) -> None:
     """Generate script to prepare a node for Sunbeam use."""
+    if bootstrap and client:
+        raise click.UsageError("Cannot prepare node as both client and bootstrap")
     script = "#!/bin/bash\n"
     if not client:
         script += PREPARE_NODE_TEMPLATE
     script += COMMON_TEMPLATE
+    if bootstrap:
+        script += BOOTSTRAP_TEMPLATE
     console.print(script, soft_wrap=True)

sunbeam-python/sunbeam/versions.py

@@ -33,6 +33,7 @@
 CONSUL_CHANNEL = "1.19/edge"
 TEMPEST_CHANNEL = "2024.1/stable"
 K8S_CHANNEL = "1.32/beta"
+LXD_CHANNEL = "5.21/stable"
 
 # List of charms with default channels
 OPENSTACK_CHARMS_K8S = {