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Merge pull request #1159 from kusumachalasani/cloudwatchlogs
Add cloudwatch LogAppender
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168 changes: 168 additions & 0 deletions
168
src/main/java/com/autotune/utils/CloudWatchAppender.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,168 @@ | ||
| package com.autotune.utils; | ||
| import org.apache.logging.log4j.Level; | ||
| import org.apache.logging.log4j.LogManager; | ||
| import org.apache.logging.log4j.core.Filter; | ||
| import org.apache.logging.log4j.core.LoggerContext; | ||
| import org.apache.logging.log4j.core.appender.AbstractAppender; | ||
| import org.apache.logging.log4j.core.Layout; | ||
| import org.apache.logging.log4j.core.LogEvent; | ||
| import org.apache.logging.log4j.core.config.Configuration; | ||
| import org.apache.logging.log4j.core.config.LoggerConfig; | ||
| import org.apache.logging.log4j.core.filter.AbstractFilter; | ||
| import org.apache.logging.log4j.core.layout.PatternLayout; | ||
| import software.amazon.awssdk.auth.credentials.AwsBasicCredentials; | ||
| import software.amazon.awssdk.auth.credentials.StaticCredentialsProvider; | ||
| import software.amazon.awssdk.regions.Region; | ||
| import software.amazon.awssdk.services.cloudwatchlogs.CloudWatchLogsAsyncClient; | ||
| import software.amazon.awssdk.services.cloudwatchlogs.CloudWatchLogsClient; | ||
| import software.amazon.awssdk.services.cloudwatchlogs.model.*; | ||
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|
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.concurrent.CompletableFuture; | ||
| import static com.autotune.operator.KruizeDeploymentInfo.*; | ||
|
|
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| public class CloudWatchAppender extends AbstractAppender { | ||
| private final String logGroupName; | ||
| private final String logStreamName; | ||
| private final CloudWatchLogsAsyncClient cloudWatchLogsClient; | ||
| private String sequenceToken = null; | ||
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|
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| public CloudWatchAppender(String name, Filter filter, Layout<?> layout, String logGroupName, String logStreamName, String region, String awsAccessKeyId, String awsSecretKey) { | ||
| super(name, filter, layout, false, null); | ||
| this.logGroupName = logGroupName; | ||
| this.logStreamName = logStreamName; | ||
| this.cloudWatchLogsClient = CloudWatchLogsAsyncClient.builder() | ||
| .credentialsProvider(StaticCredentialsProvider.create(AwsBasicCredentials.create(awsAccessKeyId, awsSecretKey))) | ||
| .region(Region.of(region)) | ||
| .build(); | ||
| } | ||
|
|
||
| @Override | ||
| public void start() { | ||
| super.start(); | ||
| } | ||
|
|
||
| @Override | ||
| public void append(LogEvent event) { | ||
| String message = getLayout().toSerializable(event).toString(); | ||
| List<InputLogEvent> logEvents = new ArrayList<>(); | ||
| logEvents.add(InputLogEvent.builder() | ||
| .timestamp(event.getTimeMillis()) | ||
| .message(message) | ||
| .build()); | ||
|
|
||
| PutLogEventsRequest request = PutLogEventsRequest.builder() | ||
| .logGroupName(logGroupName) | ||
| .logStreamName(logStreamName) | ||
| .logEvents(logEvents) | ||
| .sequenceToken(sequenceToken) | ||
| .build(); | ||
|
|
||
| CompletableFuture<PutLogEventsResponse> futureResponse = cloudWatchLogsClient.putLogEvents(request); | ||
| futureResponse.whenComplete((response, error) -> { | ||
| if (error != null) { | ||
| error.printStackTrace(); | ||
| } else { | ||
| sequenceToken = response.nextSequenceToken(); | ||
| } | ||
| }); | ||
| } | ||
|
|
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| public static void configureLoggerForCloudWatchLog() { | ||
| if (cloudwatch_logs_access_key_id != null && !cloudwatch_logs_access_key_id.isEmpty() && cloudwatch_logs_secret_access_key != null && !cloudwatch_logs_secret_access_key.isEmpty() && cloudwatch_logs_region != null && !cloudwatch_logs_region.isEmpty()) { | ||
| try { | ||
| // Define default values for attributes if they are empty or null | ||
| String cw_logs_log_group = cloudwatch_logs_log_group == null || cloudwatch_logs_log_group.isEmpty() ? "kruize-logs" : cloudwatch_logs_log_group; | ||
| String cw_logs_log_stream = cloudwatch_logs_log_stream == null || cloudwatch_logs_log_stream.isEmpty() ? "kruize-stream" : cloudwatch_logs_log_stream; | ||
| String cw_logs_log_level = cloudwatch_logs_log_level == null || cloudwatch_logs_log_level.isEmpty() ? "INFO" : cloudwatch_logs_log_level; | ||
| String cw_logs_log_level_uc = cw_logs_log_level.toUpperCase(); | ||
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| CloudWatchLogsClient logsClient = CloudWatchLogsClient.builder() | ||
| .region(Region.of(cloudwatch_logs_region)) | ||
| .credentialsProvider(StaticCredentialsProvider.create(AwsBasicCredentials.create(cloudwatch_logs_access_key_id, cloudwatch_logs_secret_access_key))) | ||
| .build(); | ||
|
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| if (!logGroupExists(logsClient, cw_logs_log_group)) { | ||
| createLogGroup(logsClient, cw_logs_log_group); | ||
| } | ||
|
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| if (!logStreamExists(logsClient, cw_logs_log_group, cw_logs_log_stream)) { | ||
| createLogStream(logsClient, cw_logs_log_group, cw_logs_log_stream); | ||
| } | ||
|
|
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| LoggerContext context = (LoggerContext) LogManager.getContext(false); | ||
| Configuration config = context.getConfiguration(); | ||
|
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| Level level = Level.getLevel(cw_logs_log_level_uc); | ||
| Filter filter = new LogFilter(level); | ||
| Layout<?> layout = PatternLayout.newBuilder().withPattern(KruizeConstants.Patterns.CLOUDWATCH_LOG_PATTERN).build(); | ||
| CloudWatchAppender appender = new CloudWatchAppender("cloudwatchRootAppender", filter, layout, cw_logs_log_group, cw_logs_log_stream, cloudwatch_logs_region,cloudwatch_logs_access_key_id,cloudwatch_logs_secret_access_key); | ||
|
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| appender.start(); | ||
| config.addAppender(appender); | ||
| // Adding CloudWatch Appender to "com.autotune" logger | ||
| LoggerConfig loggerConfig = config.getLoggerConfig("com.autotune"); | ||
| loggerConfig.addAppender(appender, level, filter); | ||
| context.updateLoggers(config); | ||
|
|
||
| } catch (Exception e) { | ||
| LOGGER.error(e.getMessage()); | ||
| } | ||
| } else { | ||
| LOGGER.info("AWS access details are not provided. Skipping sending logs to CloudWatch."); | ||
| } | ||
| } | ||
| private static boolean logGroupExists(CloudWatchLogsClient logsClient, String logGroupName) { | ||
| DescribeLogGroupsRequest request = DescribeLogGroupsRequest.builder() | ||
| .logGroupNamePrefix(logGroupName) | ||
| .build(); | ||
| DescribeLogGroupsResponse response = logsClient.describeLogGroups(request); | ||
| List<LogGroup> logGroups = response.logGroups(); | ||
| return logGroups.stream().anyMatch(group -> group.logGroupName().equals(logGroupName)); | ||
| } | ||
|
|
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| private static boolean logStreamExists(CloudWatchLogsClient logsClient, String logGroupName, String logStreamName) { | ||
| DescribeLogStreamsRequest request = DescribeLogStreamsRequest.builder() | ||
| .logGroupName(logGroupName) | ||
| .logStreamNamePrefix(logStreamName) | ||
| .build(); | ||
| DescribeLogStreamsResponse response = logsClient.describeLogStreams(request); | ||
| List<LogStream> logStreams = response.logStreams(); | ||
| return logStreams.stream().anyMatch(stream -> stream.logStreamName().equals(logStreamName)); | ||
| } | ||
|
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| private static void createLogGroup(CloudWatchLogsClient logsClient, String logGroupName) { | ||
| CreateLogGroupRequest request = CreateLogGroupRequest.builder() | ||
| .logGroupName(logGroupName) | ||
| .build(); | ||
| logsClient.createLogGroup(request); | ||
| LOGGER.info("Created log group: {}", logGroupName); | ||
| } | ||
|
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| private static void createLogStream(CloudWatchLogsClient logsClient, String logGroupName, String logStreamName) { | ||
| CreateLogStreamRequest request = CreateLogStreamRequest.builder() | ||
| .logGroupName(logGroupName) | ||
| .logStreamName(logStreamName) | ||
| .build(); | ||
| logsClient.createLogStream(request); | ||
| LOGGER.info("Created log stream: {} in log group: {}", logStreamName, logGroupName); | ||
| } | ||
|
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|
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| private static class LogFilter extends AbstractFilter { | ||
| private final Level level; | ||
|
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| protected LogFilter(Level level) { | ||
| super(Result.ACCEPT, Result.DENY); | ||
| this.level = level; | ||
| } | ||
|
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| @Override | ||
| public Result filter(LogEvent event) { | ||
| return event.getLevel().isMoreSpecificThan(level) ? onMatch : onMismatch; | ||
| } | ||
|
|
||
| } | ||
| } |
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