/**
* Copyright 2005-2014 Red Hat, Inc.
*
* Red Hat licenses this file to you under the Apache License, version
* 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package io.fabric8.openshift;
import io.fabric8.api.AutoScaleRequest;
import io.fabric8.utils.Maps;
import io.fabric8.utils.Strings;
import io.fabric8.utils.Systems;
import io.fabric8.api.Container;
import io.fabric8.api.ContainerAutoScaler;
import io.fabric8.api.Containers;
import io.fabric8.api.FabricService;
import io.fabric8.api.NameValidator;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.List;
import java.util.Map;
/**
*/
public class OpenShiftAutoScaler implements ContainerAutoScaler {
private static final transient Logger LOG = LoggerFactory.getLogger(OpenShiftAutoScaler.class);
private final OpenshiftContainerProvider containerProvider;
public OpenShiftAutoScaler(OpenshiftContainerProvider containerProvider) {
this.containerProvider = containerProvider;
}
@Override
public int getWeight() {
return 100;
}
@Override
public void createContainers(AutoScaleRequest request) throws Exception {
int count = request.getDelta();
String profile = request.getProfile();
String version = request.getVersion();
FabricService fabricService = request.getFabricService();
CreateOpenshiftContainerOptions.Builder builder = null;
if (fabricService != null) {
builder = createAutoScaleOptions(fabricService);
}
if (builder != null) {
// TODO this is actually generic to all providers! :)
for (int i = 0; i < count; i++) {
Container[] containers = fabricService.getContainers();
final CreateOpenshiftContainerOptions.Builder configuredBuilder = builder.number(1).version(version).profiles(profile);
NameValidator openShiftValidator = containerProvider.createNameValidator(configuredBuilder.build());
NameValidator fabricNameValidator = Containers.createNameValidator(fabricService.getContainers());
NameValidator nameValidator = Containers.joinNameValidators(openShiftValidator, fabricNameValidator);
String name = Containers.createContainerName(containers, profile, containerProvider.getScheme(), nameValidator);
CreateOpenshiftContainerOptions options = configuredBuilder.name(name).build();
LOG.info("Creating container name " + name + " version " + version + " profile " + profile + " " + count + " container(s)");
fabricService.createContainers(options);
}
} else {
LOG.warn("Could not create version " + version + " profile " + profile + " due to missing autoscale configuration");
}
}
protected CreateOpenshiftContainerOptions.Builder createAutoScaleOptions(FabricService fabricService) {
CreateOpenshiftContainerOptions.Builder builder = CreateOpenshiftContainerOptions.builder();
String zookeeperUrl = fabricService.getZookeeperUrl();
String zookeeperPassword = fabricService.getZookeeperPassword();
builder = builder.zookeeperUrl(zookeeperUrl).zookeeperPassword(zookeeperPassword);
Map<String, ?> properties = containerProvider.getConfiguration();
String serverUrl = validateProperty(properties,
"serverUrl",
OpenshiftContainerProvider.PROPERTY_AUTOSCALE_SERVER_URL,
"OPENSHIFT_BROKER_HOST",
OpenShiftConstants.DEFAULT_SERVER_URL);
String domain = validateProperty(properties,
"domain",
OpenshiftContainerProvider.PROPERTY_AUTOSCALE_DOMAIN,
"OPENSHIFT_NAMESPACE",
"");
String login = validateProperty(properties,
"login",
OpenshiftContainerProvider.PROPERTY_AUTOSCALE_LOGIN,
"OPENSHIFT_LOGIN",
"");
String password = validateProperty(properties,
"login",
OpenshiftContainerProvider.PROPERTY_AUTOSCALE_PASSWORD,
"OPENSHIFT_PASSWORD",
"");
if (Strings.isNotBlank(domain) && Strings.isNotBlank(login) && Strings.isNotBlank(password)) {
LOG.info("Using serverUrl: " + serverUrl + " domain: " + domain + " login: " + login);
return builder.serverUrl(serverUrl).domain(domain).login(login).password(password);
} else {
return null;
}
}
protected String validateProperty(Map<String, ?> properties, String name, String propertyName, String envVarName, String defaultValue) {
String answer = Maps.stringValue(properties, propertyName, Systems.getEnvVar(envVarName, defaultValue));
if (Strings.isNullOrBlank(answer)) {
LOG.warn("No configured value for " + name + " in property " + propertyName + " or environment variable $" + envVarName);
}
return answer;
}
@Override
public void destroyContainers(String profile, int count, List<Container> containers) {
// TODO
}
}