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https://issues.apache.org/jira/browse/CLOUDSTACK-10290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16480577#comment-16480577
]
ASF GitHub Bot commented on CLOUDSTACK-10290:
---------------------------------------------
nvazquez commented on a change in pull request #2651: CLOUDSTACK-10290:
Introduce option to have config drives on primary storage
URL: https://github.com/apache/cloudstack/pull/2651#discussion_r189249271
##########
File path:
engine/storage/configdrive/src/org/apache/cloudstack/storage/configdrive/ConfigDriveBuilder.java
##########
@@ -0,0 +1,222 @@
+// 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.cloudstack.storage.configdrive;
+
+import static com.cloud.network.NetworkModel.CONFIGDATA_CONTENT;
+import static com.cloud.network.NetworkModel.CONFIGDATA_DIR;
+import static com.cloud.network.NetworkModel.CONFIGDATA_FILE;
+import static com.cloud.network.NetworkModel.PASSWORD_FILE;
+import static com.cloud.network.NetworkModel.USERDATA_FILE;
+
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.List;
+
+import org.apache.commons.codec.binary.Base64;
+import org.apache.commons.io.FileUtils;
+import org.apache.commons.lang.StringUtils;
+import org.apache.log4j.Logger;
+import org.joda.time.Duration;
+
+import com.cloud.network.NetworkModel;
+import com.cloud.utils.exception.CloudRuntimeException;
+import com.cloud.utils.script.Script;
+import com.google.common.base.Strings;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+
+public class ConfigDriveBuilder {
+
+ public static final Logger LOG =
Logger.getLogger(ConfigDriveBuilder.class);
+
+ private static void writeFile(final File folder, final String file, final
String content) {
+ if (folder == null || Strings.isNullOrEmpty(file)) {
+ return;
+ }
+ final File vendorDataFile = new File(folder, file);
+ try (final FileWriter fw = new FileWriter(vendorDataFile); final
BufferedWriter bw = new BufferedWriter(fw)) {
+ bw.write(content);
+ } catch (IOException ex) {
+ throw new CloudRuntimeException("Failed to create config drive
file " + file, ex);
+ }
+ }
+
+ public static String fileToBase64String(final File isoFile) throws
IOException {
+ byte[] encoded =
Base64.encodeBase64(FileUtils.readFileToByteArray(isoFile));
+ return new String(encoded, StandardCharsets.US_ASCII);
+ }
+
+ public static File base64StringToFile(final String encodedIsoData, final
String folder, final String fileName) throws IOException {
+ byte[] decoded =
Base64.decodeBase64(encodedIsoData.getBytes(StandardCharsets.US_ASCII));
+ Path destPath = Paths.get(folder, fileName);
+ return Files.write(destPath, decoded).toFile();
+ }
+
+ public static String buildConfigDrive(final List<String[]> vmData, final
String isoFileName, final String driveLabel) {
+ if (vmData == null) {
+ throw new CloudRuntimeException("No VM metadata provided");
+ }
+
+ Path tempDir = null;
+ String tempDirName = null;
+ try {
+ tempDir = Files.createTempDirectory(ConfigDrive.CONFIGDRIVEDIR);
+ tempDirName = tempDir.toString();
+
+ File openStackFolder = new File(tempDirName +
ConfigDrive.openStackConfigDriveName);
+ if (openStackFolder.exists() || openStackFolder.mkdirs()) {
+ writeFile(openStackFolder, "vendor_data.json", "{}");
+ writeFile(openStackFolder, "network_data.json", "{}");
+ } else {
+ throw new CloudRuntimeException("Failed to create folder " +
openStackFolder);
+ }
+
+ JsonObject metaData = new JsonObject();
+ for (String[] item : vmData) {
+ String dataType = item[CONFIGDATA_DIR];
+ String fileName = item[CONFIGDATA_FILE];
+ String content = item[CONFIGDATA_CONTENT];
+ LOG.debug(String.format("[createConfigDriveIsoForVM]
dataType=%s, filename=%s, content=%s",
+ dataType, fileName,
(fileName.equals(PASSWORD_FILE)?"********":content)));
+
+ // create file with content in folder
+ if (dataType != null && !dataType.isEmpty()) {
+ //create folder
+ File typeFolder = new File(tempDirName +
ConfigDrive.cloudStackConfigDriveName + dataType);
+ if (typeFolder.exists() || typeFolder.mkdirs()) {
+ if (StringUtils.isNotEmpty(content)) {
+ File file = new File(typeFolder, fileName +
".txt");
+ try {
+ if (fileName.equals(USERDATA_FILE)) {
+ // User Data is passed as a base64 encoded
string
+ FileUtils.writeByteArrayToFile(file,
Base64.decodeBase64(content));
+ } else {
+ FileUtils.write(file, content,
com.cloud.utils.StringUtils.getPreferredCharset());
+ }
+ } catch (IOException ex) {
+ throw new CloudRuntimeException("Failed to
create file ", ex);
+ }
+ }
+ } else {
+ throw new CloudRuntimeException("Failed to create
folder: " + typeFolder);
+ }
+
+ //now write the file to the OpenStack directory
+ metaData = buildOpenStackMetaData(metaData, dataType,
fileName, content);
+ }
+ }
+ writeFile(openStackFolder, "meta_data.json", metaData.toString());
+
+ String linkResult = linkUserData(tempDirName);
+ if (linkResult != null) {
+ String errMsg = "Unable to create user_data link due to " +
linkResult;
+ throw new CloudRuntimeException(errMsg);
+ }
+
+ File tmpIsoStore = new File(tempDirName, new
File(isoFileName).getName());
+ Script command = new Script("/usr/bin/genisoimage",
Duration.standardSeconds(300), LOG);
Review comment:
Can this also be extracted into a method?
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> Config drive - only supported for secondary storage
> ---------------------------------------------------
>
> Key: CLOUDSTACK-10290
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-10290
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Affects Versions: 4.11.0.0
> Reporter: Rohit Yadav
> Assignee: Daan Hoogland
> Priority: Major
>
> Userdata disk looks like this:
> <disk type='file' device='cdrom'>
> <driver name='qemu' type='raw' cache='none'/>
> <source
> file='/mnt/eba12ff3-c3a6-394a-bf0f-23291f1f6266/configdrive.iso'/>
> <backingStore/>
> <target dev='hdd' bus='ide'/>
> <readonly/>
> <alias name='ide0-1-1'/>
> <address type='drive' controller='0' bus='1' target='0' unit='1'/>
> </disk>
> Mount is:
> root# df /mnt/eba12ff3-c3a6-394a-bf0f-23291f1f6266
> Filesystem 1K-blocks
> Used Available Use% Mounted on
> some-nfs-server.com:/nfs/secondary/ConfigDrive/i-2-24-VM 66391040 2973696
> 63417344 5% /mnt/eba12ff3-c3a6-394a-bf0f-23291f1f6266
>
> issue: where to find a primary storage for a VM that is not yet deployed. The
> configdrive is created before a storage is assigned. This order of execution
> must be reversed for this to work.
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