建设网站app,哪里有网站制作,进入公众号后怎么编辑信息,网站制作 那种语言好k8s部署单点的mysql实例 文章目录 前言一、基础环境准备二、准备yaml文件三、yaml文件中的特殊配置3.1 时区的配置3.2 管理员密码的配置3.3 lostfound配置3.4 探针配置 总结 前言
记录一下根据kubernetes.io的范本部署一个mysql实例的过程
一、基础环境准备
准备一个k8s集群… k8s部署单点的mysql实例 文章目录 前言一、基础环境准备二、准备yaml文件三、yaml文件中的特殊配置3.1 时区的配置3.2 管理员密码的配置3.3 lostfound配置3.4 探针配置 总结 前言
记录一下根据kubernetes.io的范本部署一个mysql实例的过程
一、基础环境准备
准备一个k8s集群配置好存储类我这里使用的是rook-ceph的cephfs
二、准备yaml文件
mysql.yaml
# get from https://kubernetes.io/docs/tasks/run-application/run-single-instance-stateful-application/
apiVersion: v1
kind: Namespace
metadata:name: daxinxindahaohao-mysql---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:name: mysql-pv-claimnamespace: daxinxindahaohao-mysql
spec:storageClassName: rook-cephfsaccessModes:- ReadWriteManyresources:requests:storage: 50G
---
apiVersion: v1
kind: Service
metadata:name: mysqlnamespace: daxinxindahaohao-mysql
spec:type: ClusterIPports:- name: mysql-3306protocol: TCPport: 3306targetPort: 3306selector:app: mysql
---
apiVersion: apps/v1
kind: Deployment
metadata:name: mysqlnamespace: oneops-mysql
spec:selector:matchLabels:app: mysqlstrategy:type: Recreatetemplate:metadata:labels:app: mysqlspec:containers:# 指定现在使用的特定版本- image: docker.io/library/mysql:5.7.36name: mysql# 解决pvc使用ceph的rbd格式引入的lostfound文件导致无法正常启动的问题args: [--ignore-db-dirlostfound]env:# 设定root用户的账号密码- name: MYSQL_ROOT_PASSWORDvalue: 123456- name: TZvalue: Asia/Shanghaiports:- containerPort: 3306name: mysqlvolumeMounts:- name: mysql-persistent-storagemountPath: /var/lib/mysql# 增加探针readinessProbe:tcpSocket:port: 3306initialDelaySeconds: 1periodSeconds: 30successThreshold: 2volumes:- name: mysql-persistent-storagepersistentVolumeClaim:claimName: mysql-pv-claim
三、yaml文件中的特殊配置
3.1 时区的配置 - name: TZvalue: Asia/Shanghai3.2 管理员密码的配置 - name: MYSQL_ROOT_PASSWORDvalue: 1234563.3 lostfound配置
解决报错信息[ERROR] --initialize specified but the data directory has files in it. Aborting. args: [--ignore-db-dirlostfound]3.4 探针配置 # 增加探针readinessProbe:tcpSocket:port: 3306initialDelaySeconds: 1periodSeconds: 30successThreshold: 2这里增加探针的原因是因为pod状态变为RUNNING之后内部的mariadb服务会有一个初始化重启过程只有当初始化重启完毕之后3306端口才会被监听起来。 简单的说就是mariadb服务的生命周期是第一次启动–》自动初始化–》重启服务进行初始化–》初始化完成二次启动。只有当二次启动之后服务才是正常对外提供服务的。 但是如果是设置数据库初始化脚本的话在第一次启动的时候就载入数据库表结构文件就会出现中断的错误影响初始化脚本的成功运行。 下面付上初始化启动的日志
2023-09-06 16:18:1308:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server 5.7.36-1debian10 started.
2023-09-06 16:18:1408:00 [Note] [Entrypoint]: Switching to dedicated user mysql
2023-09-06 16:18:1408:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server 5.7.36-1debian10 started.
2023-09-06 16:18:1508:00 [Note] [Entrypoint]: Initializing database files
2023-09-06T08:18:15.068741Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2023-09-06T08:18:53.008582Z 0 [Warning] InnoDB: New log files created, LSN45790
2023-09-06T08:18:55.351193Z 0 [Warning] InnoDB: Creating foreign key constraint system tables.
2023-09-06T08:18:56.020897Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 05ba0787-4c8e-11ee-b619-fecb0056b728.
2023-09-06T08:18:56.139729Z 0 [Warning] Gtid table is not ready to be used. Table mysql.gtid_executed cannot be opened.
2023-09-06T08:18:56.709872Z 0 [Warning] A deprecated TLS version TLSv1 is enabled. Please use TLSv1.2 or higher.
2023-09-06T08:18:56.709901Z 0 [Warning] A deprecated TLS version TLSv1.1 is enabled. Please use TLSv1.2 or higher.
2023-09-06T08:18:56.710623Z 0 [Warning] CA certificate ca.pem is self signed.
2023-09-06T08:18:56.913185Z 1 [Warning] rootlocalhost is created with an empty password ! Please consider switching off the --initialize-insecure option.
2023-09-06 16:20:2608:00 [Note] [Entrypoint]: Database files initialized
2023-09-06 16:20:2608:00 [Note] [Entrypoint]: Starting temporary server
2023-09-06 16:20:2608:00 [Note] [Entrypoint]: Waiting for server startup
2023-09-06T08:20:26.418510Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2023-09-06T08:20:26.423936Z 0 [Note] mysqld (mysqld 5.7.36) starting as process 108 ...
2023-09-06T08:20:26.430518Z 0 [Note] InnoDB: PUNCH HOLE support available
2023-09-06T08:20:26.430547Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2023-09-06T08:20:26.430551Z 0 [Note] InnoDB: Uses event mutexes
2023-09-06T08:20:26.430554Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2023-09-06T08:20:26.430557Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
2023-09-06T08:20:26.430562Z 0 [Note] InnoDB: Using Linux native AIO
2023-09-06T08:20:26.430958Z 0 [Note] InnoDB: Number of pools: 1
2023-09-06T08:20:26.431158Z 0 [Note] InnoDB: Using CPU crc32 instructions
2023-09-06T08:20:26.434067Z 0 [Note] InnoDB: Initializing buffer pool, total size 128M, instances 1, chunk size 128M
2023-09-06T08:20:26.446992Z 0 [Note] InnoDB: Completed initialization of buffer pool
2023-09-06T08:20:26.450888Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2023-09-06T08:20:26.471519Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2023-09-06T08:20:26.700633Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2023-09-06T08:20:26.701971Z 0 [Note] InnoDB: Setting file ./ibtmp1 size to 12 MB. Physically writing the file full; Please wait ...
2023-09-06T08:20:29.172209Z 0 [Note] InnoDB: File ./ibtmp1 size is now 12 MB.
2023-09-06T08:20:29.177887Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.
2023-09-06T08:20:29.177925Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.
2023-09-06T08:20:29.180270Z 0 [Note] InnoDB: 5.7.36 started; log sequence number 2751302
2023-09-06T08:20:29.180687Z 0 [Note] InnoDB: Loading buffer pool(s) from /var/lib/mysql/ib_buffer_pool
2023-09-06T08:20:29.181526Z 0 [Note] Plugin FEDERATED is disabled.
2023-09-06T08:20:29.192825Z 0 [Note] InnoDB: Buffer pool(s) load completed at 230906 16:20:29
2023-09-06T08:20:29.199171Z 0 [Note] Found ca.pem, server-cert.pem and server-key.pem in data directory. Trying to enable SSL support using them.
2023-09-06T08:20:29.199208Z 0 [Note] Skipping generation of SSL certificates as certificate files are present in data directory.
2023-09-06T08:20:29.199215Z 0 [Warning] A deprecated TLS version TLSv1 is enabled. Please use TLSv1.2 or higher.
2023-09-06T08:20:29.199220Z 0 [Warning] A deprecated TLS version TLSv1.1 is enabled. Please use TLSv1.2 or higher.
2023-09-06T08:20:29.200335Z 0 [Warning] CA certificate ca.pem is self signed.
2023-09-06T08:20:29.200416Z 0 [Note] Skipping generation of RSA key pair as key files are present in data directory.
2023-09-06T08:20:29.210472Z 0 [Warning] Insecure configuration for --pid-file: Location /var/run/mysqld in the path is accessible to all OS users. Consider choosing a different directory.
2023-09-06T08:20:29.283645Z 0 [Note] Event Scheduler: Loaded 0 events
2023-09-06T08:20:29.284159Z 0 [Note] mysqld: ready for connections.
Version: 5.7.36 socket: /var/run/mysqld/mysqld.sock port: 0 MySQL Community Server (GPL)
2023-09-06 16:20:3008:00 [Note] [Entrypoint]: Temporary server started.
Warning: Unable to load /usr/share/zoneinfo/iso3166.tab as time zone. Skipping it.
Warning: Unable to load /usr/share/zoneinfo/leap-seconds.list as time zone. Skipping it.
2023-09-06T08:21:17.708990Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 14928ms. The settings might not be optimal. (flushed3 and evicted0, during the time.)
Warning: Unable to load /usr/share/zoneinfo/zone.tab as time zone. Skipping it.
Warning: Unable to load /usr/share/zoneinfo/zone1970.tab as time zone. Skipping it.2023-09-06 16:21:2208:00 [Note] [Entrypoint]: Stopping temporary server
2023-09-06T08:21:22.927973Z 0 [Note] Giving 0 client threads a chance to die gracefully
2023-09-06T08:21:22.928036Z 0 [Note] Shutting down slave threads
2023-09-06T08:21:22.928052Z 0 [Note] Forcefully disconnecting 0 remaining clients
2023-09-06T08:21:22.928063Z 0 [Note] Event Scheduler: Purging the queue. 0 events
2023-09-06T08:21:22.928161Z 0 [Note] Binlog end
2023-09-06T08:21:22.929679Z 0 [Note] Shutting down plugin ngram
2023-09-06T08:21:22.929707Z 0 [Note] Shutting down plugin partition
2023-09-06T08:21:22.929713Z 0 [Note] Shutting down plugin BLACKHOLE
2023-09-06T08:21:22.929719Z 0 [Note] Shutting down plugin ARCHIVE
2023-09-06T08:21:22.929722Z 0 [Note] Shutting down plugin PERFORMANCE_SCHEMA
2023-09-06T08:21:22.929787Z 0 [Note] Shutting down plugin MRG_MYISAM
2023-09-06T08:21:22.929797Z 0 [Note] Shutting down plugin MyISAM
2023-09-06T08:21:22.929821Z 0 [Note] Shutting down plugin INNODB_SYS_VIRTUAL
2023-09-06T08:21:22.929827Z 0 [Note] Shutting down plugin INNODB_SYS_DATAFILES
2023-09-06T08:21:22.929831Z 0 [Note] Shutting down plugin INNODB_SYS_TABLESPACES
2023-09-06T08:21:22.929834Z 0 [Note] Shutting down plugin INNODB_SYS_FOREIGN_COLS
2023-09-06T08:21:22.929837Z 0 [Note] Shutting down plugin INNODB_SYS_FOREIGN
2023-09-06T08:21:22.929842Z 0 [Note] Shutting down plugin INNODB_SYS_FIELDS
2023-09-06T08:21:22.929845Z 0 [Note] Shutting down plugin INNODB_SYS_COLUMNS
2023-09-06T08:21:22.929849Z 0 [Note] Shutting down plugin INNODB_SYS_INDEXES
2023-09-06T08:21:22.929852Z 0 [Note] Shutting down plugin INNODB_SYS_TABLESTATS
2023-09-06T08:21:22.929856Z 0 [Note] Shutting down plugin INNODB_SYS_TABLES
2023-09-06T08:21:22.929862Z 0 [Note] Shutting down plugin INNODB_FT_INDEX_TABLE
2023-09-06T08:21:22.929865Z 0 [Note] Shutting down plugin INNODB_FT_INDEX_CACHE
2023-09-06T08:21:22.929869Z 0 [Note] Shutting down plugin INNODB_FT_CONFIG
2023-09-06T08:21:22.929873Z 0 [Note] Shutting down plugin INNODB_FT_BEING_DELETED
2023-09-06T08:21:22.929876Z 0 [Note] Shutting down plugin INNODB_FT_DELETED
2023-09-06T08:21:22.929879Z 0 [Note] Shutting down plugin INNODB_FT_DEFAULT_STOPWORD
2023-09-06T08:21:22.929883Z 0 [Note] Shutting down plugin INNODB_METRICS
2023-09-06T08:21:22.929887Z 0 [Note] Shutting down plugin INNODB_TEMP_TABLE_INFO
2023-09-06T08:21:22.929890Z 0 [Note] Shutting down plugin INNODB_BUFFER_POOL_STATS
2023-09-06T08:21:22.929895Z 0 [Note] Shutting down plugin INNODB_BUFFER_PAGE_LRU
2023-09-06T08:21:22.929899Z 0 [Note] Shutting down plugin INNODB_BUFFER_PAGE
2023-09-06T08:21:22.929903Z 0 [Note] Shutting down plugin INNODB_CMP_PER_INDEX_RESET
2023-09-06T08:21:22.929907Z 0 [Note] Shutting down plugin INNODB_CMP_PER_INDEX
2023-09-06T08:21:22.929910Z 0 [Note] Shutting down plugin INNODB_CMPMEM_RESET
2023-09-06T08:21:22.929914Z 0 [Note] Shutting down plugin INNODB_CMPMEM
2023-09-06T08:21:22.929917Z 0 [Note] Shutting down plugin INNODB_CMP_RESET
2023-09-06T08:21:22.929921Z 0 [Note] Shutting down plugin INNODB_CMP
2023-09-06T08:21:22.929925Z 0 [Note] Shutting down plugin INNODB_LOCK_WAITS
2023-09-06T08:21:22.929928Z 0 [Note] Shutting down plugin INNODB_LOCKS
2023-09-06T08:21:22.929932Z 0 [Note] Shutting down plugin INNODB_TRX
2023-09-06T08:21:22.929936Z 0 [Note] Shutting down plugin InnoDB
2023-09-06T08:21:22.930018Z 0 [Note] InnoDB: FTS optimize thread exiting.
2023-09-06T08:21:22.930342Z 0 [Note] InnoDB: Starting shutdown...
2023-09-06T08:21:23.030855Z 0 [Note] InnoDB: Dumping buffer pool(s) to /var/lib/mysql/ib_buffer_pool
2023-09-06T08:21:23.034210Z 0 [Note] InnoDB: Buffer pool(s) dump completed at 230906 16:21:23
2023-09-06T08:21:35.754523Z 0 [Note] InnoDB: Shutdown completed; log sequence number 12661989
2023-09-06T08:21:36.550125Z 0 [Note] InnoDB: Removed temporary tablespace data file: ibtmp1
2023-09-06T08:21:36.550239Z 0 [Note] Shutting down plugin MEMORY
2023-09-06T08:21:36.550268Z 0 [Note] Shutting down plugin CSV
2023-09-06T08:21:36.550281Z 0 [Note] Shutting down plugin sha256_password
2023-09-06T08:21:36.550287Z 0 [Note] Shutting down plugin mysql_native_password
2023-09-06T08:21:36.550653Z 0 [Note] Shutting down plugin binlog
2023-09-06T08:21:36.556583Z 0 [Note] mysqld: Shutdown complete2023-09-06 16:21:3608:00 [Note] [Entrypoint]: Temporary server stopped2023-09-06 16:21:3608:00 [Note] [Entrypoint]: MySQL init process done. Ready for start up.2023-09-06T08:21:37.264717Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2023-09-06T08:21:37.271432Z 0 [Note] mysqld (mysqld 5.7.36) starting as process 1 ...
2023-09-06T08:21:37.279621Z 0 [Note] InnoDB: PUNCH HOLE support available
2023-09-06T08:21:37.279661Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2023-09-06T08:21:37.279669Z 0 [Note] InnoDB: Uses event mutexes
2023-09-06T08:21:37.279677Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2023-09-06T08:21:37.279684Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
2023-09-06T08:21:37.279695Z 0 [Note] InnoDB: Using Linux native AIO
2023-09-06T08:21:37.280444Z 0 [Note] InnoDB: Number of pools: 1
2023-09-06T08:21:37.280779Z 0 [Note] InnoDB: Using CPU crc32 instructions
2023-09-06T08:21:37.285025Z 0 [Note] InnoDB: Initializing buffer pool, total size 128M, instances 1, chunk size 128M
2023-09-06T08:21:37.311721Z 0 [Note] InnoDB: Completed initialization of buffer pool
2023-09-06T08:21:37.317736Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2023-09-06T08:21:37.338335Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2023-09-06T08:21:38.398840Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2023-09-06T08:21:38.401005Z 0 [Note] InnoDB: Setting file ./ibtmp1 size to 12 MB. Physically writing the file full; Please wait ...
2023-09-06T08:21:40.329229Z 0 [Note] InnoDB: File ./ibtmp1 size is now 12 MB.
2023-09-06T08:21:40.334360Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.
2023-09-06T08:21:40.334393Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.
2023-09-06T08:21:40.335344Z 0 [Note] InnoDB: Waiting for purge to start
2023-09-06T08:21:40.385739Z 0 [Note] InnoDB: 5.7.36 started; log sequence number 12661989
2023-09-06T08:21:40.386093Z 0 [Note] InnoDB: Loading buffer pool(s) from /var/lib/mysql/ib_buffer_pool
2023-09-06T08:21:40.386668Z 0 [Note] Plugin FEDERATED is disabled.
2023-09-06T08:21:40.401632Z 0 [Note] InnoDB: Buffer pool(s) load completed at 230906 16:21:40
2023-09-06T08:21:40.409594Z 0 [Note] Found ca.pem, server-cert.pem and server-key.pem in data directory. Trying to enable SSL support using them.
2023-09-06T08:21:40.409615Z 0 [Note] Skipping generation of SSL certificates as certificate files are present in data directory.
2023-09-06T08:21:40.409621Z 0 [Warning] A deprecated TLS version TLSv1 is enabled. Please use TLSv1.2 or higher.
2023-09-06T08:21:40.409625Z 0 [Warning] A deprecated TLS version TLSv1.1 is enabled. Please use TLSv1.2 or higher.
2023-09-06T08:21:40.410398Z 0 [Warning] CA certificate ca.pem is self signed.
2023-09-06T08:21:40.410457Z 0 [Note] Skipping generation of RSA key pair as key files are present in data directory.
2023-09-06T08:21:40.411310Z 0 [Note] Server hostname (bind-address): *; port: 3306
2023-09-06T08:21:40.411396Z 0 [Note] IPv6 is available.
2023-09-06T08:21:40.411422Z 0 [Note] - :: resolves to ::;
2023-09-06T08:21:40.411460Z 0 [Note] Server socket created on IP: ::.
2023-09-06T08:21:40.421034Z 0 [Warning] Insecure configuration for --pid-file: Location /var/run/mysqld in the path is accessible to all OS users. Consider choosing a different directory.
2023-09-06T08:21:40.480176Z 0 [Note] Event Scheduler: Loaded 0 events
2023-09-06T08:21:40.480637Z 0 [Note] mysqld: ready for connections.
Version: 5.7.36 socket: /var/run/mysqld/mysqld.sock port: 3306 MySQL Community Server (GPL)
2023-09-06T08:25:16.406841Z 2 [Note] Access denied for user rootlocalhost (using password: NO)总结
只是单纯部署使用的话用不到探针的配置。我这里选择使用是因为有个一键式部署和初始化的功能需求加上探针的话就只需要判断pod状态就可以了比较简单。
