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coreos/azure: Make etcd cluster scalable

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This commit is contained in:
Ilya Dmitrichenko
2015-04-22 17:11:26 +01:00
parent d882ad5411
commit 7b8abf3cbb
3 changed files with 45 additions and 8 deletions
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50
docs/getting-started-guides/coreos/azure/lib/deployment_logic/kubernetes.js
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@@ -5,15 +5,51 @@ var util = require('../util.js');
var cloud_config = require('../cloud_config.js');
etcd_initial_cluster_conf_self = function (conf) {
var port = '2380';
var data = {
nodes: _(conf.nodes.etcd).times(function (n) {
var host = util.hostname(n, 'etcd');
return [host, [host, port].join(':')].join('=http://');
}),
};
return {
'name': 'etcd2.service',
'drop-ins': [{
'name': '50-etcd-initial-cluster.conf',
'content': _.template("[Service]\nEnvironment=ETCD_INITIAL_CLUSTER=<%= nodes.join(',') %>\n")(data),
}],
};
};
etcd_initial_cluster_conf_kube = function (conf) {
var port = '4001';
var data = {
nodes: _(conf.nodes.etcd).times(function (n) {
var host = util.hostname(n, 'etcd');
return 'http://' + [host, port].join(':');
}),
};
return {
'name': 'apiserver.service',
'drop-ins': [{
'name': '50-etcd-initial-cluster.conf',
'content': _.template("[Service]\nEnvironment=ETCD_SERVERS=--etcd_servers=<%= nodes.join(',') %>\n")(data),
}],
};
};
exports.create_etcd_cloud_config = function (node_count, conf) {
var input_file = './cloud_config_templates/kubernetes-cluster-etcd-node-template.yml';
var output_file = util.join_output_file_path('kubernetes-cluster-etcd-nodes', 'generated.yml');
return _(node_count).times(function (n) {
var output_file = util.join_output_file_path('kubernetes-cluster-etcd-node-' + n, 'generated.yml');
return cloud_config.process_template(input_file, output_file, function(data) {
return data;
});
return cloud_config.process_template(input_file, output_file, function(data) {
data.coreos.units.push(etcd_initial_cluster_conf_self(conf));
return data;
});
};
@@ -31,8 +67,10 @@ exports.create_node_cloud_config = function (node_count, conf) {
bridge_address_cidr: util.ipv4([10, 2, n, 1], 24),
});
};
return cloud_config.process_template(input_file, output_file, function(data) {
data.write_files = data.write_files.concat(_(node_count).times(make_node_config));
data.coreos.units.push(etcd_initial_cluster_conf_kube(conf));
return data;
});
};