diff options
| -rw-r--r-- | cloudinit/config/cc_lxd.py | 111 | ||||
| -rw-r--r-- | doc/examples/cloud-config-lxd.txt | 27 |
2 files changed, 123 insertions, 15 deletions
diff --git a/cloudinit/config/cc_lxd.py b/cloudinit/config/cc_lxd.py index 63b8fb63..7d90b606 100644 --- a/cloudinit/config/cc_lxd.py +++ b/cloudinit/config/cc_lxd.py @@ -30,9 +30,23 @@ Example config: storage_create_loop: <size> storage_pool: <name> trust_password: <password> + bridge: + mode: <new, existing or none> + name: <name> + ipv4_address: <ip addr> + ipv4_netmask: <cidr> + ipv4_dhcp_first: <ip addr> + ipv4_dhcp_last: <ip addr> + ipv4_dhcp_leases: <size> + ipv4_nat: <bool> + ipv6_address: <ip addr> + ipv6_netmask: <cidr> + ipv6_nat: <bool> + domain: <domain> """ from cloudinit import util +import os def handle(name, cfg, cloud, log, args): @@ -46,22 +60,24 @@ def handle(name, cfg, cloud, log, args): type(lxd_cfg)) return + # Grab the configuration init_cfg = lxd_cfg.get('init') if not isinstance(init_cfg, dict): log.warn("lxd/init config must be a dictionary. found a '%s'", type(init_cfg)) init_cfg = {} - if not init_cfg: - log.debug("no lxd/init config. disabled.") - return + bridge_cfg = lxd_cfg.get('bridge') + if not isinstance(bridge_cfg, dict): + log.warn("lxd/bridge config must be a dictionary. found a '%s'", + type(bridge_cfg)) + bridge_cfg = {} + # Install the needed packages packages = [] - # Ensure lxd is installed if not util.which("lxd"): packages.append('lxd') - # if using zfs, get the utils if init_cfg.get("storage_backend") == "zfs" and not util.which('zfs'): packages.append('zfs') @@ -73,13 +89,78 @@ def handle(name, cfg, cloud, log, args): return # Set up lxd if init config is given - init_keys = ( - 'network_address', 'network_port', 'storage_backend', - 'storage_create_device', 'storage_create_loop', - 'storage_pool', 'trust_password') - cmd = ['lxd', 'init', '--auto'] - for k in init_keys: - if init_cfg.get(k): - cmd.extend(["--%s=%s" % - (k.replace('_', '-'), str(init_cfg[k]))]) - util.subp(cmd) + if init_cfg: + init_keys = ( + 'network_address', 'network_port', 'storage_backend', + 'storage_create_device', 'storage_create_loop', + 'storage_pool', 'trust_password') + cmd = ['lxd', 'init', '--auto'] + for k in init_keys: + if init_cfg.get(k): + cmd.extend(["--%s=%s" % + (k.replace('_', '-'), str(init_cfg[k]))]) + util.subp(cmd) + + # Set up lxd-bridge if bridge config is given + if bridge_cfg: + debconf = {} + + if bridge_cfg.get("mode") == "none": + debconf["lxd/setup-bridge"] = "false" + debconf["lxd/bridge-name"] = "" + + elif bridge_cfg.get("mode") == "existing": + debconf["lxd/setup-bridge"] = "false" + debconf["lxd/use-existing-bridge"] = "true" + debconf["lxd/bridge-name"] = bridge_cfg.get("name") + + elif bridge_cfg.get("mode") == "new": + debconf["lxd/setup-bridge"] = "true" + debconf["lxd/bridge-name"] = bridge_cfg.get("name", "lxdbr0") + if bridge_cfg.get("ipv4_address"): + debconf["lxd/bridge-ipv4"] = "true" + debconf["lxd/bridge-ipv4-address"] = \ + bridge_cfg.get("ipv4_address") + debconf["lxd/bridge-ipv4-netmask"] = \ + bridge_cfg.get("ipv4_netmask") + debconf["lxd/bridge-ipv4-dhcp-first"] = \ + bridge_cfg.get("ipv4_dhcp_first") + debconf["lxd/bridge-ipv4-dhcp-last"] = \ + bridge_cfg.get("ipv4_dhcp_last") + debconf["lxd/bridge-ipv4-dhcp-leases"] = \ + bridge_cfg.get("ipv4_dhcp_leases") + debconf["lxd/bridge-ipv4-nat"] = \ + bridge_cfg.get("ipv4_nat", "true") + + if bridge_cfg.get("ipv6_address"): + debconf["lxd/bridge-ipv6"] = "true" + debconf["lxd/bridge-ipv6-address"] = \ + bridge_cfg.get("ipv6_address") + debconf["lxd/bridge-ipv6-netmask"] = \ + bridge_cfg.get("ipv6_netmask") + debconf["lxd/bridge-ipv6-nat"] = \ + bridge_cfg.get("ipv6_nat", "false") + + else: + log.warn("invalid bridge mode \"%s\"" % bridge_cfg.get("mode")) + return + + # Update debconf database + try: + log.debug("Setting lxd debconf-set-selections") + for k, v in debconf.items(): + util.subp(['debconf-communicate'], "set %s %s\n" % (k, v)) + except: + util.logexc(log, "Failed to run debconf-communicate for lxd") + + # Remove the existing configuration file (forces re-generation) + if os.path.exists("/etc/default/lxd-bridge"): + os.remove("/etc/default/lxd-bridge") + + # Run reconfigure + try: + log.debug("Running dpkg-reconfigure for lxd") + util.subp(['dpkg-reconfigure', 'lxd', + '--frontend=noninteractive']) + except: + util.logexc(log, "Failed to run dpkg-reconfigure for lxd") diff --git a/doc/examples/cloud-config-lxd.txt b/doc/examples/cloud-config-lxd.txt index b9bb4aa5..e96f314b 100644 --- a/doc/examples/cloud-config-lxd.txt +++ b/doc/examples/cloud-config-lxd.txt @@ -12,6 +12,20 @@ # storage_create_loop: set up loop based storage with size in GB # storage_pool: name of storage pool to use or create # trust_password: password required to add new clients +# bridge: dict of options for the lxd bridge +# mode: one of "new", "existing" or "none". Defaults to "new" +# name: the name of the bridge. Defaults to "lxdbr0" +# ipv4_address: an IPv4 address (e.g. 10.0.8.1) +# ipv4_netmask: a CIDR mask value (e.g. 24) +# ipv4_dhcp_first: the first IP of the DHCP range (e.g. 10.0.8.2) +# ipv4_dhcp_last: the last IP of the DHCP range (e.g. 10.0.8.254) +# ipv4_dhcp_leases: the size of the DHCP pool (e.g. 250) +# ipv4_nat: either "true" or "false" +# ipv6_address: an IPv6 address (e.g. fd98:9e0:3744::1) +# ipv6_netmask: a CIDR mask value (e.g. 64) +# ipv6_nat: either "true" or "false" +# domain: domain name to use for the bridge + lxd: init: @@ -20,6 +34,19 @@ lxd: storage_backend: zfs storage_pool: datapool storage_create_loop: 10 + bridge: + mode: new + name: lxdbr0 + ipv4_address: 10.0.8.1 + ipv4_netmask: 24 + ipv4_dhcp_first: 10.0.8.2 + ipv4_dhcp_last: 10.0.8.3 + ipv4_dhcp_leases: 250 + ipv4_nat: true + ipv6_address: fd98:9e0:3744::1 + ipv6_netmask: 64 + ipv6_nat: true + domain: lxd # The simplist working configuration is |