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|
{ config, lib, pkgs, ... }:
with lib; with import ./common.nix {inherit lib;};
let
cfg = config.virtualisation.openstack.glance;
commonConf = ''
[database]
connection = "mysql://${cfg.database.user}:${cfg.database.password.pattern}@${cfg.database.host}/${cfg.database.name}"
notification_driver = noop
[keystone_authtoken]
auth_url = ${cfg.authUrl}
auth_plugin = password
project_name = service
project_domain_id = default
user_domain_id = default
username = ${cfg.serviceUsername}
password = ${cfg.servicePassword.pattern}
[glance_store]
default_store = file
filesystem_store_datadir = /var/lib/glance/images/
'';
glanceApiConfTpl = pkgs.writeText "glance-api.conf" ''
${commonConf}
[paste_deploy]
flavor = keystone
config_file = ${cfg.package}/etc/glance-api-paste.ini
'';
glanceRegistryConfTpl = pkgs.writeText "glance-registry.conf" ''
${commonConf}
[paste_deploy]
config_file = ${cfg.package}/etc/glance-registry-paste.ini
'';
glanceApiConf = "/var/lib/glance/glance-api.conf";
glanceRegistryConf = "/var/lib/glance/glance-registry.conf";
in {
options.virtualisation.openstack.glance = {
package = mkOption {
type = types.package;
default = pkgs.glance;
defaultText = "pkgs.glance";
description = ''
Glance package to use.
'';
};
enable = mkOption {
default = false;
type = types.bool;
description = ''
This option enables Glance as a single-machine
installation. That is, all of Glance's components are
enabled on this machine. This is useful for evaluating and
experimenting with Glance. Note we are currently not
providing any configurations for a multi-node setup.
'';
};
authUrl = mkOption {
type = types.str;
default = http://localhost:5000;
description = ''
Complete public Identity (Keystone) API endpoint. Note this is
unversionned.
'';
};
serviceUsername = mkOption {
type = types.str;
default = "glance";
description = ''
The Glance service username. This user is created if bootstrap
is enable, otherwise it has to be manually created before
starting this service.
'';
};
servicePassword = mkSecretOption {
name = "glanceAdminPassword";
description = ''
The Glance service user's password.
'';
};
database = databaseOption "glance";
bootstrap = {
enable = mkOption {
default = false;
type = types.bool;
description = ''
Bootstrap the Glance service by creating the service tenant,
an admin account and a public endpoint. This option provides
a ready-to-use glance service. This is only done at the
first Glance execution by the systemd post start section.
The keystone admin account is used to create required
Keystone resource for the Glance service.
<note><para> This option is a helper for setting up
development or testing environments.</para></note>
'';
};
endpointPublic = mkOption {
type = types.str;
default = "http://localhost:9292";
description = ''
The public image endpoint. The link <link
xlink:href="http://docs.openstack.org/liberty/install-guide-rdo/keystone-services.html">
create endpoint</link> provides more informations
about that.
'';
};
keystoneAdminUsername = mkOption {
type = types.str;
default = "admin";
description = ''
The keystone admin user name used to create the Glance account.
'';
};
keystoneAdminPassword = mkSecretOption {
name = "keystoneAdminPassword";
description = ''
The keystone admin user's password.
'';
};
keystoneAdminTenant = mkOption {
type = types.str;
default = "admin";
description = ''
The keystone admin tenant used to create the Glance account.
'';
};
keystoneAuthUrl = mkOption {
type = types.str;
default = "http://localhost:5000/v2.0";
description = ''
The keystone auth url used to create the Glance account.
'';
};
};
};
config = mkIf cfg.enable {
users.extraUsers = [{
name = "glance";
group = "glance";
uid = config.ids.gids.glance;
}];
users.extraGroups = [{
name = "glance";
gid = config.ids.gids.glance;
}];
systemd.services.glance-registry = {
description = "OpenStack Glance Registry Daemon";
after = [ "network.target"];
path = [ pkgs.curl pkgs.pythonPackages.keystoneclient pkgs.gawk ];
wantedBy = [ "multi-user.target" ];
preStart = ''
mkdir -m 775 -p /var/lib/glance/{images,scrubber,image_cache}
chown glance:glance /var/lib/glance/{images,scrubber,image_cache}
# Secret file managment
cp ${glanceRegistryConfTpl} ${glanceRegistryConf};
chown glance:glance ${glanceRegistryConf};
chmod 640 ${glanceRegistryConf}
${replaceSecret cfg.database.password glanceRegistryConf}
${replaceSecret cfg.servicePassword glanceRegistryConf}
cp ${glanceApiConfTpl} ${glanceApiConf};
chown glance:glance ${glanceApiConf};
chmod 640 ${glanceApiConf}
${replaceSecret cfg.database.password glanceApiConf}
${replaceSecret cfg.servicePassword glanceApiConf}
# Initialise the database
${cfg.package}/bin/glance-manage --config-file=${glanceApiConf} --config-file=${glanceRegistryConf} db_sync
'';
postStart = ''
set -eu
export OS_AUTH_URL=${cfg.bootstrap.keystoneAuthUrl}
export OS_USERNAME=${cfg.bootstrap.keystoneAdminUsername}
export OS_PASSWORD=${getSecret cfg.bootstrap.keystoneAdminPassword}
export OS_TENANT_NAME=${cfg.bootstrap.keystoneAdminTenant}
# Wait until the keystone is available for use
count=0
while ! keystone user-get ${cfg.bootstrap.keystoneAdminUsername} > /dev/null
do
if [ $count -eq 30 ]
then
echo "Tried 30 times, giving up..."
exit 1
fi
echo "Keystone not yet started. Waiting for 1 second..."
count=$((count++))
sleep 1
done
# If the service glance doesn't exist, we consider glance is
# not initialized
if ! keystone service-get glance
then
keystone service-create --type image --name glance
ID=$(keystone service-get glance | awk '/ id / { print $4 }')
keystone endpoint-create --region RegionOne --service $ID --internalurl http://localhost:9292 --adminurl http://localhost:9292 --publicurl ${cfg.bootstrap.endpointPublic}
keystone user-create --name ${cfg.serviceUsername} --tenant service --pass ${getSecret cfg.servicePassword}
keystone user-role-add --tenant service --user ${cfg.serviceUsername} --role admin
fi
'';
serviceConfig = {
PermissionsStartOnly = true; # preStart must be run as root
TimeoutStartSec = "600"; # 10min for initial db migrations
User = "glance";
Group = "glance";
ExecStart = "${cfg.package}/bin/glance-registry --config-file=${glanceRegistryConf}";
};
};
systemd.services.glance-api = {
description = "OpenStack Glance API Daemon";
after = [ "glance-registry.service" "network.target"];
requires = [ "glance-registry.service" "network.target"];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
PermissionsStartOnly = true; # preStart must be run as root
User = "glance";
Group = "glance";
ExecStart = "${cfg.package}/bin/glance-api --config-file=${glanceApiConf}";
};
};
};
}
|