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Merge pull request #759 from spotify/mattbrown/registry-auth-supplier
add RegistryAuthSupplier interface
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119 changes: 119 additions & 0 deletions
119
src/main/java/com/spotify/docker/client/DockerConfigReader.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| /*- | ||
| * -\-\- | ||
| * docker-client | ||
| * -- | ||
| * Copyright (C) 2016 Spotify AB | ||
| * -- | ||
| * 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.spotify.docker.client; | ||
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|
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| import static com.google.common.base.Preconditions.checkNotNull; | ||
| import static com.google.common.base.Strings.isNullOrEmpty; | ||
|
|
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| import com.fasterxml.jackson.databind.JsonNode; | ||
| import com.fasterxml.jackson.databind.ObjectMapper; | ||
| import com.fasterxml.jackson.databind.node.ObjectNode; | ||
| import com.google.common.base.Preconditions; | ||
| import com.spotify.docker.client.messages.RegistryAuth; | ||
| import com.spotify.docker.client.messages.RegistryConfigs; | ||
| import java.io.IOException; | ||
| import java.nio.file.Files; | ||
| import java.nio.file.Path; | ||
| import java.nio.file.Paths; | ||
| import java.util.Map; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
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| public class DockerConfigReader { | ||
| private static final Logger LOG = LoggerFactory.getLogger(DockerConfigReader.class); | ||
|
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| private static final ObjectMapper MAPPER = ObjectMapperProvider.objectMapper(); | ||
|
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| /** Returns all RegistryConfig instances from the configuration file. */ | ||
| public RegistryConfigs fromConfig(Path configPath) throws IOException { | ||
| return parseDockerConfig(configPath); | ||
| } | ||
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| public RegistryAuth fromConfig(Path configPath, String serverAddress) throws IOException { | ||
| return parseDockerConfig(configPath, serverAddress); | ||
| } | ||
|
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| /** | ||
| * @deprecated do not use - only exists for backwards compatibility. Use {@link #fromConfig(Path)} | ||
| * instead. | ||
| */ | ||
| @Deprecated | ||
| public RegistryAuth fromFirstConfig(Path configPath) throws IOException { | ||
| return parseDockerConfig(configPath, null); | ||
| } | ||
|
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| private RegistryAuth parseDockerConfig(final Path configPath, String serverAddress) | ||
| throws IOException { | ||
| checkNotNull(configPath); | ||
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| final Map<String, RegistryAuth> configs = parseDockerConfig(configPath).configs(); | ||
| if (serverAddress != null && configs.containsKey(serverAddress) ) { | ||
| return configs.get(serverAddress); | ||
| } | ||
|
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| if (isNullOrEmpty(serverAddress)) { | ||
| if (configs.isEmpty()) { | ||
| return RegistryAuth.builder().build(); | ||
| } | ||
| LOG.warn("Returning first entry from docker config file - use fromConfig(Path) instead, " | ||
| + "this behavior is deprecated and will soon be removed"); | ||
| return configs.values().iterator().next(); | ||
| } | ||
|
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| throw new IllegalArgumentException( | ||
| "serverAddress=" + serverAddress + " does not appear in config file at " + configPath); | ||
| } | ||
|
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| private RegistryConfigs parseDockerConfig(final Path configPath) throws IOException { | ||
| checkNotNull(configPath); | ||
| return MAPPER.treeToValue(extractAuthJson(configPath), RegistryConfigs.class); | ||
| } | ||
|
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| public Path defaultConfigPath() { | ||
| final String home = System.getProperty("user.home"); | ||
| final Path dockerConfig = Paths.get(home, ".docker", "config.json"); | ||
| final Path dockerCfg = Paths.get(home, ".dockercfg"); | ||
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| if (Files.exists(dockerConfig)) { | ||
| LOG.debug("Using configfile: {}", dockerConfig); | ||
| return dockerConfig; | ||
| } else { | ||
| LOG.debug("Using configfile: {} ", dockerCfg); | ||
| return dockerCfg; | ||
| } | ||
| } | ||
|
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| private ObjectNode extractAuthJson(final Path configPath) throws IOException { | ||
| final JsonNode config = MAPPER.readTree(configPath.toFile()); | ||
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| Preconditions.checkState(config.isObject(), | ||
| "config file contents are not a JSON Object, instead it is a %s", config.getNodeType()); | ||
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| if (config.has("auths")) { | ||
| final JsonNode auths = config.get("auths"); | ||
| Preconditions.checkState(auths.isObject(), | ||
| "config file contents are not a JSON Object, instead it is a %s", auths.getNodeType()); | ||
| return (ObjectNode) auths; | ||
| } | ||
|
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| return (ObjectNode) config; | ||
| } | ||
| } |
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