Docker installation builds Tomcat + MySQL<\/p>\n\n\n\n
virtual machine
\nVirtual machine installation Docker
\nBuild on a clean CentOS image
\nCentos image preparation
\nPull the Centos image on the virtual machine: docker pull centos
\nCreate a container to run the Centos image: docker run -it -d –name mycentos centos \/bin\/bash
\nNote: There is an error here [ WARNING: IPv4 forwarding is disabled. Networking will not work. ]<\/p>\n\n\n\n
Change the virtual machine file: vim \/usr\/lib\/sysctl.d\/00-system.conf
\nAdd the following content
\nnet.ipv4.ip_forward=1
\nRestart the network: systemctl restart network
\nNote: There is another problem here, systemctl in docker can not be used normally. Find the following solutions on the official website<\/p>\n\n\n\n
Link: https:\/\/forums.docker.com\/t\/systemctl-status-is-not-working-in-my-docker-container\/9075\/4<\/p>\n\n\n\n
Run mirror with the following statement
\ndocker run –privileged -v \/sys\/fs\/cgroup:\/sys\/fs\/cgroup -it -d –name usr_sbin_init_centos centos \/usr\/sbin\/init<\/p>\n\n\n\n
Finally, I was able to run a Centos image.<\/p>\n\n\n\n
Install the JAVA environment
\nPrepare the JDK tarball to upload to the virtual machine
\nPut the tarball into the docker container using docker cp
\ndocker cp jdk-11.0.2_linux-x64_bin.tar.gz 41dbc0fbdf3c:\/<\/p>\n\n\n\n
Extract the tar package
\ntar -xf jdk-11.0.2_linux-x64_bin.tar.gz -C \/usr\/local\/java\/jdk
\nEdit profile file export java environment variable<\/p>\n\n\n\n
export JAVA_HOME=\/usr\/local\/java\/jdk\/jdk1.8.0_91
\nexport PATH=$JAVA_HOME\/bin:$PATH
\nexport CLASSPATH=.:$JAVA_HOME\/lib\/dt.jar:$JAVA_HOME\/lib\/tools.jar
\nRun source \/etc\/profile to make environment variables take effect
\nWhether the test is successful
\njava –version <\/p>\n\n\n\n
java 11.0.2 2019-01-15 LTS
\nJava(TM) SE Runtime Environment 18.9 (build 11.0.2+9-LTS)
\nJava HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.2+9-LTS, mixed mode)
\nInstall Tomcat
\nPrepare the tomcat tar package to upload to the virtual machine and cp to the docker container
\nExtract to
\ntar -xf apache-tomcat-8.5.38.tar.gz -C \/usr\/local\/tomcat
\nSet boot boot, by using rc.local file<\/p>\n\n\n\n
export JAVA_HOME=\/usr\/local\/java\/jdk\/jdk-11.0.2
\n\/usr\/local\/tomcat\/apache-tomcat-8.5.38\/bin\/startup.sh
\nOpen tomcat
\n\/usr\/local\/tomcat\/apache-tomcat-8.5.38\/bin\/ directory running
\n.\/startup.sh
\nDetection
\ncurl localhost:8080<\/p>\n\n\n\n
Install mysql
\nGet the yum source of mysql
\n wget -i -c http:\/\/dev.mysql.com\/get\/mysql57-community-release-el7-10.noarch.rpm
\nInstall the above yum source
\nyum -y install mysql57-community-release-el7-10.noarch.rpm
\nYum install mysql
\nyum -y install mysql-community-server
\nChange the mysql configuration: \/etc\/my\/cnf
\nValidate_password=OFF # Turn off password verification
\ncharacter-set-server=utf8
\ncollation-server=utf8_general_ci
\nlog-error=\/var\/log\/mysqld.log
\npid-file=\/var\/run\/mysqld\/mysqld.pid
\nInitialize specified but the data directory has files in it # The default behavior of timestamp from 5.6 is already deprecated, need to close the warning
\n<\/p>\n\n\n
[client]<\/p>\n\n\n\n
\ndefault-character-set=utf8
\nGet the mysql initial password
\ngrep “password” \/var\/log\/mysqld.log\n<\/p>\n\n\n\n
[Note] A temporary password is generated for root@localhost: k:nT<dT,t4sF<\/p>\n\n\n\n
Go to mysql and proceed<\/p>\n\n\n\n
mysql -u root -p <\/p>\n\n\n\n
ALTER USER ‘root’@’localhost’ IDENTIFIED BY ‘111111’;<\/p>\n\n\n\n
update user set host = ‘%’ where user = ‘root’;
\nTest, you can use physical machine, use navicat to access mysql in docker
\nPacking container
\nOn the docker hub<\/p>\n\n\n\n
docker commit -a ‘kane’ -m ‘test’ container_id images_name:images_tag<\/p>\n\n\n\n
dockerhub
\ndocker push kane0725\/tomcat
\nLocal tarball everywhere<\/p>\n\n\n\n
docker export -o test.tar a404c6c174a2<\/p>\n\n\n\n
docker import test.tar test_images
\nUse Dockerfile
\nNote: only build a mirror of tomcat<\/p>\n\n\n\n
Ready to work
\nCreate a special folder and put the jdk and tomcat tarballs
\nCreate a Dockerfile in this directory
\nCentos base image
\ndocument content
\nFROM centos
\nMAINTAINER tomcat mysql
\nADD jdk-11.0.2 \/usr\/local\/java
\nENV JAVA_HOME \/usr\/local\/java\/
\nADD apache-tomcat-8.5.38 \/usr\/local\/tomcat8
\nEXPOSE 8080
\nOutput results using docker build
\n<\/p>\n\n\n
[root@localhost dockerfile]<\/p>\n\n\n\n
# docker build -t tomcats:centos .
\nSending build context to Docker daemon 505.8 MB
\nStep 1\/7 : FROM centos
\n —> 1e1148e4cc2c
\nStep 2\/7 : MAINTAINER tomcat mysql
\n —> Using cache
\n —> 889454b28f55
\nStep 3\/7 : ADD jdk-11.0.2 \/usr\/local\/java
\n —> Using cache
\n —> 8cad86ae7723
\nStep 4\/7 : ENV JAVA_HOME \/usr\/local\/java\/
\n —> Running in 15d89d66adb4
\n —> 767983acfaca
\nRemoving intermediate container 15d89d66adb4
\nStep 5\/7 : ADD apache-tomcat-8.5.38 \/usr\/local\/tomcat8
\n —> 4219d7d611ec
\nRemoving intermediate container 3c2438ecf955
\nStep 6\/7 : EXPOSE 8080
\n —> Running in 56c4e0c3b326
\n —> 7c5bd484168a
\nRemoving intermediate container 56c4e0c3b326
\nStep 7\/7 : RUN \/usr\/local\/tomcat8\/bin\/startup.sh
\n —> Running in 7a73d0317db3\n<\/p>\n\n\n\n
Tomcat started.
\n —> b53a6d54bf64
\nRemoving intermediate container 7a73d0317db3
\nSuccessfully built b53a6d54bf64
\nDocker build problem
\nBe sure to bring the order behind. Otherwise it will report an error.
\n“docker build” requires exactly 1 argument(s).
\nRun a container<\/p>\n\n\n\n
docker run -it –name tomcats –restart always -p 1234:8080 tomcats \/bin\/bash<\/p>\n\n\n\n
\/usr\/local\/tomcat8\/bin\/startup.sh<\/p>\n\n\n\n
Using CATALINA_BASE: \/usr\/local\/tomcat8
\nUsing CATALINA_HOME: \/usr\/local\/tomcat8
\nUsing CATALINA_TMPDIR: \/usr\/local\/tomcat8\/temp
\nUsing JRE_HOME: \/usr\/local\/java\/
\nUsing CLASSPATH: \/usr\/local\/tomcat8\/bin\/bootstrap.jar:\/usr\/local\/tomcat8\/bin\/tomcat-juli.jar
\nTomcat started.
\nUse docker compose
\nInstall docker compose
\nOfficial: https:\/\/docs.docker.com\/compose\/install\/<\/p>\n\n\n\n
The way I choose is pip installation<\/p>\n\n\n\n
pip install docker-compose<\/p>\n\n\n\n
docker-compose –version<\/p>\n\n\n\n
docker-compose version 1.23.2, build 1110ad0
\nWrite docker-compose.yml<\/p>\n\n\n\n
version: “3”
\nservices:
\n mysql:
\n container_name: mysql
\n image: mysql:5.7
\n restart: always
\n volumes:
\n – .\/mysql\/data\/:\/var\/lib\/mysql\/
\n – .\/mysql\/conf\/:\/etc\/mysql\/mysql.conf.d\/
\n ports:
\n – “6033:3306”
\n environment:
\n – MYSQL_ROOT_PASSWORD=
\n tomcat:
\n container_name: tomcat
\n restart: always
\n image: tomcat
\n ports:
\n – 8080:8080
\n – 8009:8009
\n links:
\n – mysql:m1 #Connect to database mirroring
\nNote:<\/p>\n\n\n\n
Volumn must be a path, you cannot specify a file<\/p>\n\n\n\n
Tomcat specifies that the external conf has been created unsuccessfully, do not know why, prompt<\/p>\n\n\n\n
tomcat | Feb 20, 2019 2:23:29 AM org.apache.catalina.startup.Catalina load
\ntomcat | WARNING: Unable to load server configuration from [\/usr\/local\/tomcat\/conf\/server.xml]
\ntomcat | Feb 20, 2019 2:23:29 AM org.apache.catalina.startup.Catalina start
\ntomcat | SEVERE: Cannot start server. Server instance is not configured.
\ntomcat exited with code 1
\nRun command
\nNote: Must be executed under the directory of the yml file<\/p>\n\n\n\n
docker-compose up -d<\/p>\n\n\n\n
———-View docker container——-
\n<\/p>\n\n\n
[root@localhost docker-compose]<\/p>\n\n\n\n
# docker ps -a
\nCONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
\n1a8a0165a3a8 tomcat “catalina.sh run” 7 seconds ago Up 6 seconds 0.0.0.0:8009->8009\/tcp, 0.0.0.0:8080->8080\/tcp tomcat
\nddf081e87d67 mysql:5.7 “docker-entrypoint\u2026” 7 seconds ago Up 7 seconds 33060\/tcp, 0<\/p>\n","protected":false},"excerpt":{"rendered":"\n
Docker installation builds Tomcat + MySQL<\/p>\n
virtual machine Virtual machine installation Docker Build on a clean CentOS image Centos image preparation Pull the Centos image on the virtual machine: docker pull centos Create a container to run the Centos image: docker run -it -d –name mycentos centos \/bin\/bash Note: There is an error here […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[82],"tags":[],"_links":{"self":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/7803"}],"collection":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7803"}],"version-history":[{"count":1,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/7803\/revisions"}],"predecessor-version":[{"id":7804,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/7803\/revisions\/7804"}],"wp:attachment":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7803"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7803"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7803"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}