diff options
Diffstat (limited to 'cloudinit/config/cc_ntp.py')
| -rw-r--r-- | cloudinit/config/cc_ntp.py | 61 |
1 files changed, 47 insertions, 14 deletions
diff --git a/cloudinit/config/cc_ntp.py b/cloudinit/config/cc_ntp.py index 7d3f73ff..3d7279d6 100644 --- a/cloudinit/config/cc_ntp.py +++ b/cloudinit/config/cc_ntp.py @@ -24,7 +24,8 @@ LOG = logging.getLogger(__name__) frequency = PER_INSTANCE NTP_CONF = '/etc/ntp.conf' NR_POOL_SERVERS = 4 -distros = ['centos', 'debian', 'fedora', 'opensuse', 'rhel', 'sles', 'ubuntu'] +distros = ['alpine', 'centos', 'debian', 'fedora', 'opensuse', 'rhel', + 'sles', 'ubuntu'] NTP_CLIENT_CONFIG = { 'chrony': { @@ -63,6 +64,17 @@ NTP_CLIENT_CONFIG = { # This is Distro-specific configuration overrides of the base config DISTRO_CLIENT_CONFIG = { + 'alpine': { + 'chrony': { + 'confpath': '/etc/chrony/chrony.conf', + 'service_name': 'chronyd', + }, + 'ntp': { + 'confpath': '/etc/ntp.conf', + 'packages': [], + 'service_name': 'ntpd', + }, + }, 'debian': { 'chrony': { 'confpath': '/etc/chrony/chrony.conf', @@ -114,11 +126,11 @@ schema = { Handle ntp configuration. If ntp is not installed on the system and ntp configuration is specified, ntp will be installed. If there is a default ntp config file in the image or one is present in the - distro's ntp package, it will be copied to ``/etc/ntp.conf.dist`` - before any changes are made. A list of ntp pools and ntp servers can - be provided under the ``ntp`` config key. If no ntp ``servers`` or - ``pools`` are provided, 4 pools will be used in the format - ``{0-3}.{distro}.pool.ntp.org``."""), + distro's ntp package, it will be copied to a file with ``.dist`` + appended to the filename before any changes are made. A list of ntp + pools and ntp servers can be provided under the ``ntp`` config key. + If no ntp ``servers`` or ``pools`` are provided, 4 pools will be used + in the format ``{0-3}.{distro}.pool.ntp.org``."""), 'distros': distros, 'examples': [ dedent("""\ @@ -171,7 +183,10 @@ schema = { 'description': dedent("""\ List of ntp pools. If both pools and servers are empty, 4 default pool servers will be provided of - the format ``{0-3}.{distro}.pool.ntp.org``.""") + the format ``{0-3}.{distro}.pool.ntp.org``. NOTE: + for Alpine Linux when using the Busybox NTP client + this setting will be ignored due to the limited + functionality of Busybox's ntpd.""") }, 'servers': { 'type': 'array', @@ -364,21 +379,30 @@ def generate_server_names(distro): """ names = [] pool_distro = distro - # For legal reasons x.pool.sles.ntp.org does not exist, - # use the opensuse pool + if distro == 'sles': + # For legal reasons x.pool.sles.ntp.org does not exist, + # use the opensuse pool pool_distro = 'opensuse' + elif distro == 'alpine': + # Alpine-specific pool (i.e. x.alpine.pool.ntp.org) does not exist + # so use general x.pool.ntp.org instead. + pool_distro = '' + for x in range(0, NR_POOL_SERVERS): - name = "%d.%s.pool.ntp.org" % (x, pool_distro) - names.append(name) + names.append(".".join( + [n for n in [str(x)] + [pool_distro] + ['pool.ntp.org'] if n])) + return names -def write_ntp_config_template(distro_name, servers=None, pools=None, - path=None, template_fn=None, template=None): +def write_ntp_config_template(distro_name, service_name=None, servers=None, + pools=None, path=None, template_fn=None, + template=None): """Render a ntp client configuration for the specified client. @param distro_name: string. The distro class name. + @param service_name: string. The name of the NTP client service. @param servers: A list of strings specifying ntp servers. Defaults to empty list. @param pools: A list of strings specifying ntp pools. Defaults to empty @@ -397,7 +421,14 @@ def write_ntp_config_template(distro_name, servers=None, pools=None, if not pools: pools = [] - if len(servers) == 0 and len(pools) == 0: + if (len(servers) == 0 and distro_name == 'alpine' and + service_name == 'ntpd'): + # Alpine's Busybox ntpd only understands "servers" configuration + # and not "pool" configuration. + servers = generate_server_names(distro_name) + LOG.debug( + 'Adding distro default ntp servers: %s', ','.join(servers)) + elif len(servers) == 0 and len(pools) == 0: pools = generate_server_names(distro_name) LOG.debug( 'Adding distro default ntp pool servers: %s', ','.join(pools)) @@ -532,6 +563,8 @@ def handle(name, cfg, cloud, log, _args): raise RuntimeError(msg) write_ntp_config_template(cloud.distro.name, + service_name=ntp_client_config.get( + 'service_name'), servers=ntp_cfg.get('servers', []), pools=ntp_cfg.get('pools', []), path=ntp_client_config.get('confpath'), |