网站目录权限设置,上海华亮建设集团网站,网站建设术语名词,长沙网站推广排名Docker Compose 部署
在使用docker部署时#xff0c;除了使用--link的方式来关联容器之外#xff0c;还可以使用 docker compose 运行多个容器。
本文以项目#xff1a;https://github.com/johncxf/go-api 为例。
定义 Dockerfile
我这里用于区分默认 Dockerfile 文件除了使用--link的方式来关联容器之外还可以使用 docker compose 运行多个容器。
本文以项目https://github.com/johncxf/go-api 为例。
定义 Dockerfile
我这里用于区分默认 Dockerfile 文件在项目根目录下新建一个 Dockerfile-compose 文件
FROM golang:alpine AS builder# 在容器内部设置环境变量
ENV GO111MODULEon \GOPROXYhttps://goproxy.cn,direct \CGO_ENABLED0 \GOOSlinux \GOARCHamd64# 设置后续指令的工作目录
WORKDIR /build# 复制项目中的 go.mod 和 go.sum文件并下载依赖信息
COPY go.mod .
COPY go.sum .
RUN go mod download# 将代码复制到容器中
COPY . .# 将代码编译成二进制可执行文件
RUN go build -o go-api .# 创建一个小镜像
#FROM scratch
FROM debian:stretch-slimCOPY ./config /config# 从builder镜像中把 /build/go-api 拷贝到当前目录
COPY --frombuilder /build/go-api /# 需要运行的命令docker compose 运行不需要执行这一行
#ENTRYPOINT [/go-api, config/env.yml]docker-compose.yml
新建 docker-compose.yml配置文件与项目根目录下。
我这里配置了mysql、redis、go-api三个容器配置以及说明如下
version: 3.7
services:mysql:# 镜像版本号image: mysql:8.0.33# 容器名container_name: go-web-mysql# 端口号映射ports:- 8306:3306# 失败后总是重启restart: alwayscommand: --default-authentication-pluginmysql_native_password --init-file /data/application/init.sqlenvironment:MYSQL_ROOT_PASSWORD: root123456 # root 账号密码MYSQL_DATABASE: test # 数据库# 将mysql相关数据挂载到本机目录volumes:- ~/docker-data/go-api/mysql/init.sql:/data/application/init.sql- ~/docker-data/go-api/mysql/data:/var/lib/mysql #数据文件挂载- ~/docker-data/go-api/mysql/conf.d:/etc/mysql/conf.d #配置文件挂载- ~/docker-data/go-api/mysql/log:/var/log/mysql #日志文件挂载redis:# 镜像版本号image: redis:7.2.4# 容器名container_name: go-web-redis# 端口号ports:- 6379:6379# 失败后总是重启restart: always# 以配置文件的方式启动 redis.confcommand: redis-server /etc/redis/redis.conf --appendonly yes --requirepass root123456# 文件夹以及文件映射volumes:- ~/docker-data/go-api/redis:/data- ~/docker-data/go-api/redis/redis.conf:/etc/redis/redis.confgo-api:# 容器名container_name: go-web-apibuild:context: .dockerfile: Dockerfile-compose # 默认为 Dockerfile这里重新定义为 Dockerfile-compose 文件# 失败后总是重启restart: always# command: sh -c ./wait-for-it.sh mysql:3306 -- ./go-api ./config/env.ymlcommand: [ /wait-for-it.sh, mysql:3306, --, /go-api, config/env.yml ]# 依赖启动项depends_on:- mysql- redis# 端口映射ports:- 8888:8088Mysql 状态检测
docker-compose.yml 配置文件中 depends_on字段仅能保证web服务启动时mysql服务处于Running状态而不是Ready状态因为go-api需要等待mysql启动后再启动因此需要添加一个wait-for-it.sh脚本文件检测mysql服务是否处于Ready状态。
在项目根目录下新建 wait-for-it.sh 文件
#!/usr/bin/env bash
# Use this script to test if a given TCP host/port are availableWAITFORIT_cmdname${0##*/}echoerr() { if [[ $WAITFORIT_QUIET -ne 1 ]]; then echo $ 12; fi }usage()
{cat USAGE 2
Usage:$WAITFORIT_cmdname host:port [-s] [-t timeout] [-- command args]-h HOST | --hostHOST Host or IP under test-p PORT | --portPORT TCP port under testAlternatively, you specify the host and port as host:port-s | --strict Only execute subcommand if the test succeeds-q | --quiet Dont output any status messages-t TIMEOUT | --timeoutTIMEOUTTimeout in seconds, zero for no timeout-- COMMAND ARGS Execute command with args after the test finishes
USAGEexit 1
}wait_for()
{if [[ $WAITFORIT_TIMEOUT -gt 0 ]]; thenechoerr $WAITFORIT_cmdname: waiting $WAITFORIT_TIMEOUT seconds for $WAITFORIT_HOST:$WAITFORIT_PORTelseechoerr $WAITFORIT_cmdname: waiting for $WAITFORIT_HOST:$WAITFORIT_PORT without a timeoutfiWAITFORIT_start_ts$(date %s)while :doif [[ $WAITFORIT_ISBUSY -eq 1 ]]; thennc -z $WAITFORIT_HOST $WAITFORIT_PORTWAITFORIT_result$?else(echo -n /dev/tcp/$WAITFORIT_HOST/$WAITFORIT_PORT) /dev/null 21WAITFORIT_result$?fiif [[ $WAITFORIT_result -eq 0 ]]; thenWAITFORIT_end_ts$(date %s)echoerr $WAITFORIT_cmdname: $WAITFORIT_HOST:$WAITFORIT_PORT is available after $((WAITFORIT_end_ts - WAITFORIT_start_ts)) secondsbreakfisleep 1donereturn $WAITFORIT_result
}wait_for_wrapper()
{# In order to support SIGINT during timeout: http://unix.stackexchange.com/a/57692if [[ $WAITFORIT_QUIET -eq 1 ]]; thentimeout $WAITFORIT_BUSYTIMEFLAG $WAITFORIT_TIMEOUT $0 --quiet --child --host$WAITFORIT_HOST --port$WAITFORIT_PORT --timeout$WAITFORIT_TIMEOUT elsetimeout $WAITFORIT_BUSYTIMEFLAG $WAITFORIT_TIMEOUT $0 --child --host$WAITFORIT_HOST --port$WAITFORIT_PORT --timeout$WAITFORIT_TIMEOUT fiWAITFORIT_PID$!trap kill -INT -$WAITFORIT_PID INTwait $WAITFORIT_PIDWAITFORIT_RESULT$?if [[ $WAITFORIT_RESULT -ne 0 ]]; thenechoerr $WAITFORIT_cmdname: timeout occurred after waiting $WAITFORIT_TIMEOUT seconds for $WAITFORIT_HOST:$WAITFORIT_PORTfireturn $WAITFORIT_RESULT
}# process arguments
while [[ $# -gt 0 ]]
docase $1 in*:* )WAITFORIT_hostport(${1//:/ })WAITFORIT_HOST${WAITFORIT_hostport[0]}WAITFORIT_PORT${WAITFORIT_hostport[1]}shift 1;;--child)WAITFORIT_CHILD1shift 1;;-q | --quiet)WAITFORIT_QUIET1shift 1;;-s | --strict)WAITFORIT_STRICT1shift 1;;-h)WAITFORIT_HOST$2if [[ $WAITFORIT_HOST ]]; then break; fishift 2;;--host*)WAITFORIT_HOST${1#*}shift 1;;-p)WAITFORIT_PORT$2if [[ $WAITFORIT_PORT ]]; then break; fishift 2;;--port*)WAITFORIT_PORT${1#*}shift 1;;-t)WAITFORIT_TIMEOUT$2if [[ $WAITFORIT_TIMEOUT ]]; then break; fishift 2;;--timeout*)WAITFORIT_TIMEOUT${1#*}shift 1;;--)shiftWAITFORIT_CLI($)break;;--help)usage;;*)echoerr Unknown argument: $1usage;;esac
doneif [[ $WAITFORIT_HOST || $WAITFORIT_PORT ]]; thenechoerr Error: you need to provide a host and port to test.usage
fiWAITFORIT_TIMEOUT${WAITFORIT_TIMEOUT:-15}
WAITFORIT_STRICT${WAITFORIT_STRICT:-0}
WAITFORIT_CHILD${WAITFORIT_CHILD:-0}
WAITFORIT_QUIET${WAITFORIT_QUIET:-0}# Check to see if timeout is from busybox?
WAITFORIT_TIMEOUT_PATH$(type -p timeout)
WAITFORIT_TIMEOUT_PATH$(realpath $WAITFORIT_TIMEOUT_PATH 2/dev/null || readlink -f $WAITFORIT_TIMEOUT_PATH)WAITFORIT_BUSYTIMEFLAG
if [[ $WAITFORIT_TIMEOUT_PATH ~ busybox ]]; thenWAITFORIT_ISBUSY1# Check if busybox timeout uses -t flag# (recent Alpine versions dont support -t anymore)if timeout /dev/stdout | grep -q -e -t ; thenWAITFORIT_BUSYTIMEFLAG-tfi
elseWAITFORIT_ISBUSY0
fiif [[ $WAITFORIT_CHILD -gt 0 ]]; thenwait_forWAITFORIT_RESULT$?exit $WAITFORIT_RESULT
elseif [[ $WAITFORIT_TIMEOUT -gt 0 ]]; thenwait_for_wrapperWAITFORIT_RESULT$?elsewait_forWAITFORIT_RESULT$?fi
fiif [[ $WAITFORIT_CLI ! ]]; thenif [[ $WAITFORIT_RESULT -ne 0 $WAITFORIT_STRICT -eq 1 ]]; thenechoerr $WAITFORIT_cmdname: strict mode, refusing to execute subprocessexit $WAITFORIT_RESULTfiexec ${WAITFORIT_CLI[]}
elseexit $WAITFORIT_RESULT
fi构建启动
# 会根据 docker-compose 文件构建镜像并启动所有容器
$ docker-compose up -d# 查看容器
$ docker-compose ps -a# 停止所有容器
$ docker-compose down启动成功后接下来就可以通过http://127.0.0.1:8888进行访问了。
如果连接 Mysql 出现报错可以参考
Msql 进入容器使用 127.0.0.1连接mysql报错ERROR 1130 (HY000): Host 127.0.0.1 is not allowed to connect to this MySQL server可以直接输入 mysql进入执行以下操作 use mysql;update user set host % where user root;FLUSH PRIVILEGES;Mysql root 密码设置不生效解决 use mysql;ALTER USER root% IDENTIFIED WITH mysql_native_password BY root123456;FLUSH PRIVILEGES;文章推荐
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