A rapid development framework for arranging and deploying microservices based on docker-compose
Basic preparation
Docker and Docker Compose have been installed, upload the provided package Pig.tar.gz to the master node /root directory and extract it.
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Case implementation
1. Basic environment preparation
(1) Import the package
Download and extract the package:
[root@master ~]# tar -xf Pig.tar.gz
[root@master ~]# ll Pig
total 206752
-rw------- 1 root root 211696640 Jan 12 17:24 CentOS_7.9.2009.tar
drwxr-xr-x 2 root root 85 Jan 5 08:58 mysql
drwxr-xr-x 3 root root 37 Jan 5 08:56 nginx
drwxr-xr-x 2 root root 97 Jan 5 08:56 service
drwxr-xr-x 3 root root 12288 Jan 5 08:56 yum
Import the CentOS:7.9.2009 image:
[root@master ~]# docker load -i Pig/CentOS_7.9.2009.tar
Loaded image: centos:centos7.9.2009
(2) Start the Kubernetes cluster
Initialize Kubernetes cluster:
[root@master ~]# init-cluster
View cluster status:
[root@master ~]# kubectl cluster-info
Kubernetes control plane is running at https://apiserver.cluster.local:6443
CoreDNS is running at https://apiserver.cluster.local:6443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy
To further debug and diagnose cluster problems, use ‘kubectl cluster-info dump’.
2. Containerized deployment of MariaDB
(1) Write Dockerfile
Write the init.sh script:
[root@master ~]# cd Pig/
[root@master Pig]# vi mysql_init.sh
#!/bin/bash
mysql_install_db --user=root
mysqld_safe --user=root &
sleep 8
mysqladmin -u root password 'root'
mysql -uroot -proot -e "grant all on *.* to 'root'@'%' identified by 'root';flush privileges;"
mysql -uroot -proot -e "source /opt/pig.sql;source /opt/pig_codegen.sql;source /opt/pig_config.sql;source /opt/pig_job.sql;"
Write yum source:
[root@master Pig]# vi local.repo
[pig]
name=pig
baseurl=file:///root/yum
gpgcheck=0
enabled=1
Write the Dockerfile:
[root@master Pig]# vi Dockerfile-mariadb
FROM centos:centos7.9.2009
MAINTAINER Chinaskills
RUN rm -rf /etc/yum.repos.d/*
COPY local.repo /etc/yum.repos.d/
COPY yum /root/yum
ENV LC_ALL en_US.UTF-8
RUN yum -y install mariadb-server
COPY mysql /opt/
COPY mysql_init.sh /opt/
RUN bash /opt/mysql_init.sh
EXPOSE 3306
CMD ["mysqld_safe","--user=root"]
(2) Build an image
Build the image:
[root@master Pig]# docker build -t pig-mysql:v1.0 -f Dockerfile-mariadb .
Sending build context to Docker daemon 890.9MB
Step 1/12 : FROM centos:centos7.9.2009
---> eeb6ee3f44bd
Step 2/12 : MAINTAINER Chinaskills
---> Using cache
---> 815a4a5f2242
Step 3/12 : RUN rm -rf /etc/yum.repos.d/*
---> Using cache
---> 6afa0315cb5b
Step 4/12 : COPY local.repo /etc/yum.repos.d/
---> Using cache
---> 4f07e082cc00
Step 5/12 : COPY yum /root/yum
---> Using cache
---> 7042f9e7f455
Step 6/12 : ENV LC_ALL en_US.UTF-8
---> Using cache
---> df0aa8985d61
Step 7/12 : RUN yum -y install mariadb-server
---> Using cache
---> 9ad09d62d373
Step 8/12 : COPY mysql /opt/
---> Using cache
---> 75adb0e3bbb0
Step 9/12 : COPY mysql_init.sh /opt/
---> Using cache
---> 3cc10e8ca0cc
Step 10/12 : RUN bash /opt/mysql_init.sh
---> Using cache
---> f7fe9f822cc3
Step 11/12 : EXPOSE 3306
---> Using cache
---> 70f2274acbeb
Step 12/12 : CMD ["mysqld_safe","--user=root"]
---> Using cache
---> f088fb18dedf
Successfully built f088fb18dedf
Successfully tagged pig-mysql:v1.0
3. Containerized deployment of Redis
(1) Write Dockerfile
编写Dockerfile文件：
[root@master Pig]# vi Dockerfile-redis
FROM centos:centos7.9.2009
MAINTAINER Chinaskills
RUN rm -rf /etc/yum.repos.d/*
COPY local.repo /etc/yum.repos.d/
COPY yum /root/yum
RUN yum -y install redis
RUN sed -i 's/127.0.0.1/0.0.0.0/g' /etc/redis.conf && \
sed -i 's/protected-mode yes/protected-mode no/g' /etc/redis.conf
EXPOSE 6379
CMD ["/usr/bin/redis-server","/etc/redis.conf"]
(2) Build an image
[root@master Pig]# docker build -t pig-redis:v1.0 -f Dockerfile-redis .
Sending build context to Docker daemon 890.9MB
Step 1/9 : FROM centos:centos7.9.2009
---> eeb6ee3f44bd
Step 2/9 : MAINTAINER Chinaskills
---> Using cache
---> 815a4a5f2242
Step 3/9 : RUN rm -rf /etc/yum.repos.d/*
---> Using cache
---> 6afa0315cb5b
Step 4/9 : COPY local.repo /etc/yum.repos.d/
---> Using cache
---> 4f07e082cc00
Step 5/9 : COPY yum /root/yum
---> Using cache
---> 7042f9e7f455
Step 6/9 : RUN yum -y install redis
---> Using cache
---> 2d0b65ca48f0
Step 7/9 : RUN sed -i 's/127.0.0.1/0.0.0.0/g' /etc/redis.conf && sed -i 's/protected-mode yes/protected-mode no/g' /etc/redis.conf
---> Using cache
---> fcb84f12d0cf
Step 8/9 : EXPOSE 6379
---> Using cache
---> 37ac24f680d6
Step 9/9 : CMD ["/usr/bin/redis-server","/etc/redis.conf"]
---> Using cache
---> ee5f16785493
Successfully built ee5f16785493
Successfully tagged pig-redis:v1.0