| 1 | /** |
| 2 | * |
| 3 | * Copyright (C) 2011 Cloud Conscious, LLC. <info@cloudconscious.com> |
| 4 | * |
| 5 | * ==================================================================== |
| 6 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 7 | * you may not use this file except in compliance with the License. |
| 8 | * You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, software |
| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | * See the License for the specific language governing permissions and |
| 16 | * limitations under the License. |
| 17 | * ==================================================================== |
| 18 | */ |
| 19 | package org.jclouds.scriptbuilder.statements.ssh; |
| 20 | |
| 21 | import static com.google.common.base.Preconditions.checkNotNull; |
| 22 | import static org.jclouds.scriptbuilder.domain.Statements.exec; |
| 23 | import static org.jclouds.scriptbuilder.domain.Statements.newStatementList; |
| 24 | |
| 25 | import java.util.Map; |
| 26 | |
| 27 | import org.jclouds.scriptbuilder.domain.OsFamily; |
| 28 | import org.jclouds.scriptbuilder.domain.Statement; |
| 29 | |
| 30 | import com.google.common.base.Joiner; |
| 31 | import com.google.common.collect.ImmutableList; |
| 32 | |
| 33 | /** |
| 34 | * Control sshd_config |
| 35 | * |
| 36 | * @author Adrian Cole |
| 37 | */ |
| 38 | public class SshdConfig implements Statement { |
| 39 | private static final String sshdConfig = "/etc/ssh/sshd_config"; |
| 40 | |
| 41 | private final Map<String, String> params; |
| 42 | |
| 43 | public SshdConfig(Map<String, String> params) { |
| 44 | this.params = checkNotNull(params, "params"); |
| 45 | } |
| 46 | |
| 47 | public String render(OsFamily family) { |
| 48 | String linesToPrepend = Joiner.on('\n').withKeyValueSeparator(" ").join(params); |
| 49 | Statement prependSshdConfig = exec(String.format( |
| 50 | "exec 3<> %1$s && awk -v TEXT=\"%2$s\n\" 'BEGIN {print TEXT}{print}' %1$s >&3", sshdConfig, |
| 51 | linesToPrepend)); |
| 52 | Statement reloadSshdConfig = exec("/etc/init.d/sshd reload||/etc/init.d/ssh reload"); |
| 53 | return newStatementList(prependSshdConfig, reloadSshdConfig).render(family); |
| 54 | } |
| 55 | |
| 56 | @Override |
| 57 | public Iterable<String> functionDependencies(OsFamily family) { |
| 58 | return ImmutableList.of(); |
| 59 | } |
| 60 | } |