给 Cloud Logging 配置日志记录

本文档介绍如何使用目标工作负载集群上的 ConfigMap 自定义日志记录。

注意：Migrate to Containers 1.8.1 版增加了对使用 logs.yaml 文件自定义日志记录的支持。如果存在 logs.yaml 文件，系统将忽略由 ConfigMap 定义的设置。如需详细了解如何使用 logs.yaml 文件，请参阅自定义写入 Cloud Logging 的日志数据。您还可以修改随工件提供的 logs.yaml 文件并重新构建，而不是修改部署 yaml 并创建 ConfigMap。

默认情况下，Migrate to Containers 会写入来自以下来源的条目：

• 写入所有 Linux 进程的父级 init 中 stdout 的条目。
• /var/log/syslog 中的内容。

在 Cloud Logging 中，支持的日志文件中的条目将显示以下形式的日志的一行中。在列出日志文件的 ConfigMap 中定义标签。

date time label log-output

以下示例演示了包含 MySQL 条目的表单：

2019-09-22 12:43:08.681193976 +0000 UTC mysql log-output

您可以选择扩展日志转发功能，按照本主题中的说明传播在迁移的容器中运行的其他进程和应用的日志。

将应用日志转发到 Cloud Logging

如需从通过 Migate for Anthos 迁移的虚拟机上的应用登录 Cloud Logging，您必须做好以下准备：

• 在目标工作负载集群上创建一个ConfigMap，用于指定应将其条目写入 Cloud Logging 的文件系统日志文件列表。

  您可以使用下面部分中包含的示例 ConfigMap，作为涵盖许多常见日志文件的参考。

• ConfigMap 必须与容器的 Deployment 或 StatefulSet 位于同一命名空间中。

• Deployment 或 StatefulSet 必须引用 ConfigMap，如以下示例突出所示的那样：

• （仅迁移到 GKE on VMware）在 GKE on VMware 集群上安装 Connect。如需将数据回传到 Cloud Logging，您必须使用 Connect。

    apiVersion: apps/v1
    kind: Deployment
    metadata:
      creationTimestamp: null
      labels:
        app: my-app
        migrate-for-anthos-type: workload
      name: test-ibsc-appenhmutimiy
    spec:
      replicas: 1
      selector:
        matchLabels:
          app: test-ibsc-appenhmutimiy
          migrate-for-anthos-type: workload
      strategy: {}
      template:
        metadata:
          creationTimestamp: null
          labels:
            app: test-ibsc-appenhmutimiy
            migrate-for-anthos-type: workload
        spec:
          containers:
          - image: gcr.io/myproject/my-container-image:v1.0.0
            name: test-ibsc-appenhmutimiy
            readinessProbe:
              exec:
                command:
                - /code/ready.sh
            resources: {}
            securityContext:
              privileged: true
            volumeMounts:
            - mountPath: /sys/fs/cgroup
              name: cgroups
            - mountPath: /code/config/logs/
              name: logs-config
          volumes:
          - hostPath:
              path: /sys/fs/cgroup
              type: Directory
            name: cgroups
          - configMap:
              name: <ConfigMap name>
            name: logs-config

将 ConfigMap 用于常见应用日志

以下参考 ConfigMap YAML 涵盖了一系列常见应用日志文件及其应用标签。您可以按原样复制 ConfigMap YAML，或者修改它以移除条目或添加自定义应用日志。

要编辑日志文件列表，请修改 logs: 行下的元素。日志子元素由以下结构组成：

label:
  - path-with-simple-wildcards

例如：

tomcat:
  - /var/log/tomcat*/catalina.out
  - /var/log/tomcat*/localhost.*.log

参考 ConfigMap 了解常见应用

apiVersion: v1
kind: ConfigMap
metadata:
  creationTimestamp: null
  name: <ConfigMap name>
data:
  logs.yaml: |
    logs:
      mysql:
      - /var/log/mysql.log
      - /var/log/mysql/mysql.log
      mongodb:
      - /var/log/mongodb/*.log
      memcached:
      - /var/log/memcached.log
      redis:
      - /var/log/redis*.log
      - /var/log/redis/*.log
      rabbitmq-startup:
      - /var/log/rabbitmq/startup_log
      rabbitmq-startup_err:
      - /var/log/rabbitmq/startup_err
      rabbitmq-sasl:
      - /var/log/rabbitmq/*-sasl.log
      sugarcrm:
      - /var/www/*/sugarcrm.log
      tomcat-localhost_access_log:
      - /var/log/tomcat*/localhost_access_log*.txt
      tomcat:
      - /var/log/tomcat*/catalina.out
      - /var/log/tomcat*/localhost.*.log
      apache-access:
      - /var/log/apache*/access.log
      - /var/log/apache*/access_log
      - /var/log/httpd/access.log
      - /var/log/httpd/access_log
      apache-error:
      - /var/log/apache*/error.log
      - /var/log/apache*/error_log
      - /var/log/httpd/error.log
      - /var/log/httpd/error_log
      cassandra:
      - /var/log/cassandra/system.log
      - /var/log/cassandra/cassandra.log
      - /var/log/cassandra/output.log
      chef-bookshelf:
      - /var/log/chef-server/bookshelf/current
      chef-expander:
      - /var/log/chef-server/chef-expander/current
      chef-pedant-http-traffic:
      - /var/log/chef-server/chef-pedant/http-traffic.log
      chef-server-webui:
      - /var/log/chef-server/chef-server-webui/current
      chef-solr:
      - /var/log/chef-server/chef-solr/current
      chef-erchef-current:
      - /var/log/chef-server/erchef/current
      chef-erchef:
      - /var/log/chef-server/erchef/erchef.log.1
      chef-nginx-access:
      - /var/log/chef-server/nginx/access.log
      chef-nginx-error:
      - /var/log/chef-server/nginx/error.log
      chef-nginx-rewrite-port-80:
      - /var/log/chef-server/nginx/rewrite-port-80.log
      chef-postgresql:
      - /var/log/chef-server/postgresql/current
      chef-rabbitmq:
      - /var/log/chef-server/rabbitmq/current
      postgresql:
      - /var/log/postgres*/*.log
      - /var/log/pgsql/*.log
      puppet-access:
      - /var/log/pe-httpd/access.log
      puppet-puppetmasteraccess:
      - /var/log/pe-httpd/puppetmasteraccess.log
      puppet-activemq:
      - /var/log/pe-activemq/activemq.log
      puppet-activemq-wrapper:
      - /var/log/pe-activemq/wrapper.log
      puppet-mcollective:
      - /var/log/pe-mcollective/mcollective.log
      puppet-mcollective-audit:
      - /var/log/pe-mcollective/mcollective_audit.log
      puppet-puppetdb:
      - /var/log/pe-puppetdb/pe-puppetdb.log
      puppet-dashboard-error:
      - /var/log/pe-httpd/puppetdashboard.error.log
      puppet-dashboard-mcollective-client:
      - /var/log/pe-puppet-dashboard/mcollective_client.log
      puppet-dashboard-production:
      - /var/log/pe-puppet-dashboard/production.log
      puppet-dashboard-event-inspector:
      - /var/log/pe-puppet-dashboard/event-inspector.log
      puppet-dashboard-certificate-manager:
      - /var/log/pe-puppet-dashboard/certificate_manager.log
      puppet-dashboard-live-management:
      - /var/log/pe-puppet-dashboard/live-management.log
      puppet-console-cas-client:
      - /var/log/pe-console-auth/cas_client.log
      puppet-console-auth-cas:
      - /var/log/pe-console-auth/cas.log
      puppet-console-auth:
      - /var/log/pe-console-auth/auth.log
      puppet-dashboard-access:
      - /var/log/pe-httpd/puppetdashboard.access.log
      puppet-dashboard-failed-reports:
      - /var/log/pe-puppet-dashboard/failed_reports.log
      puppet-error:
      - /var/log/pe-httpd/error.log
      puppet-other-vhosts-access:
      - /var/log/pe-httpd/other_vhosts_access.log
      puppet-masterhttp:
      - /var/log/pe-puppet/masterhttp.log
      - /var/log/puppet/masterhttp.log
      puppet-rails:
      - /var/log/pe-puppet/rails.log
      puppet-http:
      - /var/log/puppet/http.log
      gitlab-application:
      - /home/git/gitlab/log/application.log
      gitlab-production:
      - /home/git/gitlab/log/production.log
      gitlab-sidekiq:
      - /home/git/gitlab/log/sidekiq.log
      gitlab-unicorn-stdout:
      - /home/git/gitlab/log/unicorn.stdout.log
      gitlab-unicorn-stderr:
      - /home/git/gitlab/log/unicorn.stderr.log
      gitlab-githost:
      - /home/git/gitlab/log/githost.log
      gitlab-satellites:
      - /home/git/gitlab/log/satellites.log
      gitlab-shell:
      - /home/git/gitlab-shell/gitlab-shell.log
      jenkins:
      - /var/log/jenkins/jenkins.log
      jetty-request:
      - /var/log/jetty/*.request.log
      jetty-stderrout:
      - /var/log/jetty/*.stderrout.log
      jetty-out:
      - /var/log/jetty/out.log
      joomla:
      - /var/www/joomla/logs/*.log
      magento-system:
      - /var/www/magento/var/log/system.log
      magento-exception:
      - /var/www/magento/var/log/exception.log
      magento-report:
      - /var/www/magento/var/report/*
      mediawiki:
      - /var/log/mediawiki/*.log
      nginx-access:
      - /var/log/nginx/access.log
      nginx-error:
      - /var/log/nginx/error.log
      redmine:
      - /var/log/redmine/*.log
      salt-master:
      - /var/log/salt/master
      salt-minion:
      - /var/log/salt/minion
      salt-key:
      - /var/log/salt/key
      salt-syndic:
      - /var/log/salt/syndic.loc
      solr:
      - /var/log/solr/*.log
      sugarcrm:
      - /var/www/*/sugarcrm.log
      tomcat-localhost_access_log:
      - /var/log/tomcat*/localhost_access_log.*.txt
      tomcat:
      - /var/log/tomcat*/catalina.out,/var/log/tomcat*/localhost.*.log

后续步骤

• 了解如何装载外部卷。