| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF 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 org.apache.brooklyn.entity.network.bind; |
| |
| import java.io.ByteArrayInputStream; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.Lists; |
| |
| import org.apache.brooklyn.entity.software.base.AbstractSoftwareProcessSshDriver; |
| import org.apache.brooklyn.location.ssh.SshMachineLocation; |
| import org.apache.brooklyn.util.collections.MutableMap; |
| import org.apache.brooklyn.util.net.Networking; |
| import org.apache.brooklyn.util.net.Protocol; |
| import org.apache.brooklyn.util.os.Os; |
| import org.apache.brooklyn.util.ssh.BashCommands; |
| import org.apache.brooklyn.util.ssh.IptablesCommands; |
| import org.apache.brooklyn.util.ssh.IptablesCommands.Chain; |
| import org.apache.brooklyn.util.ssh.IptablesCommands.Policy; |
| import org.apache.brooklyn.util.text.Strings; |
| |
| public class BindDnsServerSshDriver extends AbstractSoftwareProcessSshDriver implements BindDnsServerDriver { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(BindDnsServerSshDriver.class); |
| private volatile BindOsSupport osSupport; |
| private final Object osSupportMutex = new Object(); |
| |
| public BindDnsServerSshDriver(BindDnsServerImpl entity, SshMachineLocation machine) { |
| super(entity, machine); |
| } |
| |
| @Override |
| public BindDnsServerImpl getEntity() { |
| return (BindDnsServerImpl) super.getEntity(); |
| } |
| |
| @Override |
| public void install() { |
| List<String> commands = ImmutableList.<String>builder() |
| .add(BashCommands.installPackage(MutableMap.of( |
| "yum", "bind", "apt", "bind9"), "bind")) |
| .add(BashCommands.ok("which setenforce && " + BashCommands.sudo("setenforce 0"))) |
| .build(); |
| newScript(INSTALLING) |
| .failOnNonZeroResultCode() |
| .body.append(commands) |
| .execute(); |
| } |
| |
| @Override |
| public void customize() { |
| Integer dnsPort = getEntity().getDnsPort(); |
| Map<String, Object> ports = MutableMap.<String, Object>of("dnsPort", dnsPort); |
| Networking.checkPortsValid(ports); |
| |
| List<String> commands = Lists.newArrayList( |
| BashCommands.sudo("mkdir -p " + getDataDirectory() + " " + getDynamicDirectory() + " " + getOsSupport().getConfigDirectory()), |
| BashCommands.sudo("chown -R " + getOsSupport().getUser() + ":" + getOsSupport().getUser() + " " + getDataDirectory() + " " + getDynamicDirectory()), |
| // TODO determine name of ethernet interface if not eth0? |
| IptablesCommands.insertIptablesRule(Chain.INPUT, "eth0", Protocol.UDP, dnsPort, Policy.ACCEPT), |
| IptablesCommands.insertIptablesRule(Chain.INPUT, "eth0", Protocol.TCP, dnsPort, Policy.ACCEPT), |
| // TODO Iptables is not a service on Ubuntu |
| BashCommands.sudo("service iptables save"), |
| BashCommands.sudo("service iptables restart")); |
| if (getEntity().getConfig(BindDnsServer.UPDATE_ROOT_ZONES_FILE)) { |
| commands.add("curl --user=ftp:ftp ftp://ftp.rs.internic.net/domain/db.cache " + |
| "-o " + getOsSupport().getRootZonesFile()); |
| } |
| newScript(CUSTOMIZING) |
| .body.append(commands) |
| // fails if iptables is not a service, e.g. on ubuntu |
| //.failOnNonZeroResultCode() |
| .execute(); |
| |
| copyAsRoot("classpath://org/apache/brooklyn/entity/network/bind/rfc1912.zone", getRfc1912ZonesFile()); |
| copyAsRoot("classpath://org/apache/brooklyn/entity/network/bind/named.localhost", Os.mergePathsUnix(getOsSupport().getConfigDirectory(), "named.localhost")); |
| copyAsRoot("classpath://org/apache/brooklyn/entity/network/bind/named.loopback", Os.mergePathsUnix(getOsSupport().getConfigDirectory(), "named.loopback")); |
| copyAsRoot("classpath://org/apache/brooklyn/entity/network/bind/named.empty", Os.mergePathsUnix(getOsSupport().getConfigDirectory(), "named.empty")); |
| |
| newScript("Checking BIND configuration") |
| .body.append(BashCommands.sudo("named-checkconf")) |
| .failOnNonZeroResultCode() |
| .execute(); |
| } |
| |
| @Override |
| public void launch() { |
| newScript(MutableMap.of("usePidFile", false), LAUNCHING) |
| .body.append(BashCommands.sudo("service " + getOsSupport().getServiceName() + " start")) |
| .execute(); |
| } |
| |
| @Override |
| public boolean isRunning() { |
| return newScript(MutableMap.of("usePidFile", false), CHECK_RUNNING) |
| .body.append(BashCommands.sudo("service " + getOsSupport().getServiceName() + " status")) |
| .execute() == 0; |
| } |
| |
| @Override |
| public void stop() { |
| newScript(MutableMap.of("usePidFile", false), STOPPING) |
| .body.append(BashCommands.sudo("service " + getOsSupport().getServiceName() + " stop")) |
| .execute(); |
| } |
| |
| @Override |
| public void updateBindConfiguration() { |
| LOG.debug("Updating bind configuration at " + getMachine()); |
| copyAsRoot(entity.getConfig(BindDnsServer.NAMED_CONF_TEMPLATE), getOsSupport().getRootConfigFile()); |
| copyAsRoot(entity.getConfig(BindDnsServer.DOMAIN_ZONE_FILE_TEMPLATE), getDomainZoneFile()); |
| copyAsRoot(entity.getConfig(BindDnsServer.REVERSE_ZONE_FILE_TEMPLATE), getReverseZoneFile()); |
| int result = getMachine().execScript("restart bind", |
| ImmutableList.of(BashCommands.sudo("service " + getOsSupport().getServiceName() + " restart"))); |
| LOG.info("Updated named configuration and zone file for '{}' on {} (exit code {}).", |
| new Object[]{entity.getConfig(BindDnsServer.DOMAIN_NAME), entity, result}); |
| } |
| |
| private void copyAsRoot(String template, String destination) { |
| String content = processTemplate(template); |
| String temp = "/tmp/template-" + Strings.makeRandomId(6); |
| getMachine().copyTo(new ByteArrayInputStream(content.getBytes()), temp); |
| getMachine().execScript("copying file", ImmutableList.of(BashCommands.sudo(String.format("mv %s %s", temp, destination)))); |
| } |
| |
| /** @return The location on the server of the domain zone file */ |
| public String getDomainZoneFile() { |
| return Os.mergePaths(getOsSupport().getConfigDirectory(), "domain.zone"); |
| } |
| |
| /** @return The location on the server of the reverse zone file */ |
| public String getReverseZoneFile() { |
| return Os.mergePaths(getOsSupport().getConfigDirectory(), "reverse.zone"); |
| } |
| |
| public String getDataDirectory() { |
| return Os.mergePaths(getOsSupport().getWorkingDirectory(), "data"); |
| } |
| |
| public String getDynamicDirectory() { |
| return Os.mergePaths(getOsSupport().getWorkingDirectory(), "dynamic"); |
| } |
| |
| public String getRfc1912ZonesFile() { |
| return Os.mergePaths(getOsSupport().getConfigDirectory(), "rfc1912.zone"); |
| } |
| |
| @Override |
| public BindOsSupport getOsSupport() { |
| BindOsSupport result = osSupport; |
| if (result == null) { |
| synchronized (osSupportMutex) { |
| result = osSupport; |
| if (result == null) { |
| boolean yumExists = newScript("testing for yum") |
| .body.append(BashCommands.requireExecutable("yum")) |
| .execute() == 0; |
| osSupport = result = yumExists ? BindOsSupport.forRhel() : BindOsSupport.forDebian(); |
| } |
| } |
| } |
| return result; |
| } |
| } |