/*
* Copyright 2010-2013, CloudBees Inc.
*
* Licensed 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 com.cloudbees.sdk.commands.bg;
import com.cloudbees.api.ApplicationInfo;
import com.cloudbees.api.ApplicationStatusResponse;
import com.cloudbees.api.BeesClient;
import com.cloudbees.sdk.cli.BeesCommand;
import com.cloudbees.sdk.cli.CLICommand;
import com.cloudbees.sdk.utils.Helper;
import org.kohsuke.args4j.Option;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@BeesCommand(group = "Application", description = "Switch an application proxy alias using the Blue-Green process")
@CLICommand("app:bg:switch")
public class ApplicationBlueGreenSwitch extends ApplicationBlueGreenBase {
@Option(name = "-f", usage = "Force switch without prompting", aliases = "--force")
private Boolean force;
@Option(name = "-pao", usage = "Switch primary alias only", aliases = "--primaryAliasOnly")
private Boolean primaryOnly;
public ApplicationBlueGreenSwitch() {
}
@Override
public int main() throws Exception {
BeesClient client = getBeesClient(BeesClient.class);
List<ApplicationAlias> aliases = getAliases(client, getName(), primaryOnly != null ? primaryOnly : false);
if (force == null || !force.booleanValue()) {
if (!Helper.promptMatches("Are you sure you want to switch the application aliases: (y/n) ", "[yY].*")) {
return 0;
}
}
for (ApplicationAlias alias : aliases) {
Map<String, String> settings = new HashMap<String, String>();
settings.put("aliases", alias.getAliasString());
try {
ApplicationStatusResponse res = client.applicationProxyUpdate(alias.getAppId(), settings);
System.out.println("application proxy for " + alias.getAppId() + " : " + res.getStatus());
} catch (Exception e) {
System.err.println("ERROR: failed to update application proxy for " + alias.getAppId());
throw e;
}
}
return 0;
}
protected List<ApplicationAlias> getAliases(BeesClient client, String name, boolean primaryOnly) throws IOException {
try {
List<ApplicationAlias> applicationAliasList = new ArrayList<ApplicationAlias>();
BlueGreenSettings blueGreenSettings = BlueGreenSettings.getInstance(client, getAccount(), name);
// Get the app1 aliases
ApplicationInfo applicationInfo = client.applicationInfo(blueGreenSettings.getApplication1());
String aliases = applicationInfo.getSettings().get("aliases");
ApplicationAlias application1 = new ApplicationAlias(getAccount(), blueGreenSettings.getApplication1(), aliases);
// Get the app2 aliases
ApplicationInfo applicationInfo2 = client.applicationInfo(blueGreenSettings.getApplication2());
String aliases2 = applicationInfo2.getSettings().get("aliases");
ApplicationAlias application2 = new ApplicationAlias(getAccount(), blueGreenSettings.getApplication2(), aliases2);
if (primaryOnly) {
// If the app1 has the active aliases already
if (application1.containAliases(blueGreenSettings.getActiveAliases())) {
// remove from app1
application1.removeAliases(blueGreenSettings.getActiveAliases());
// add to app2
application2.addAliases(blueGreenSettings.getActiveAliases());
// If the app1 does not have the active aliases
} else {
// remove from app2
application2.removeAliases(blueGreenSettings.getActiveAliases());
// add to app1
application1.addAliases(blueGreenSettings.getActiveAliases());
}
} else {
// Just swap aliases
application1.setAliases(aliases2);
application2.setAliases(aliases);
}
if (application1.hasAliases())
addApplicationAlias(applicationAliasList, application1);
if (application2.hasAliases())
addApplicationAlias(applicationAliasList, application2);
return applicationAliasList;
} catch (IllegalArgumentException e) {
throw e;
} catch (Exception e) {
throw new IllegalArgumentException("Application not configured for Blue-Green deployment.", e);
}
}
private void addApplicationAlias(List<ApplicationAlias> applicationAliasList, ApplicationAlias alias) {
applicationAliasList.add(alias);
System.out.println(String.format("Setting alias [%s] for application: %s", alias.getAliasString(), alias.getAppId()));
}
}