- Comprehensive Blog on Dockers running on OCI
- running a Docker Container on OCI
- opening OCI Ports for Docker Containers
- Building a Docker Image by using Dockerfile
- Committing changes made in a Docker without using Dockerfile
- Pushing Docker Images to Docker Hub
- DevOps with Github, Docker Hub and Oracle Container Cloud Services
Goal
Goal of this session is to Run Tomcat Docker container in the background or as a Detached Mode with -d option
Download Docker Image Run Tomcat
ubuntu@dockervm:~$ docker run -it -p 8888:8080 tomcat:latest Unable to find image 'tomcat:latest' locally latest: Pulling from library/tomcat bc9ab73e5b14: Pull complete 193a6306c92a: Pull complete e5c3f8c317dc: Pull complete d21441932c53: Pull complete fa76b0d25092: Pull complete 346fd8610875: Pull complete 3ca5d6af9022: Pull complete c06cfa2cea32: Pull complete 205950a5a114: Pull complete 6332a55c669e: Pull complete b5efe96df0e8: Pull complete b4e0e542b56a: Pull complete Digest: sha256:1fcb78083a88bc300d9fcb2ecfe4bcf1d20337db9196634c6c7a823bfc4da4ee Status: Downloaded newer image for tomcat:latest buntu@dockervm:~$ docker run -it -d -p 8888:8080 tomcat:latest d8e5454419c29ce7b5f5a99b67712474409c8a8c4e30782c2addf38b8c4ccd3c ubuntu@dockervm:~$ docker logs d8e5454419c29ce7b5f5a99b67712474409c8a8c4e30782c2addf38b8c4ccd3c Using CATALINA_BASE: /usr/local/tomcat Using CATALINA_HOME: /usr/local/tomcat Using CATALINA_TMPDIR: /usr/local/tomcat/temp Using JRE_HOME: /docker-java-home/jre Using CLASSPATH: /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar 06-Nov-2018 11:44:05.799 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version: Apache Tomcat/8.5.34 06-Nov-2018 11:44:05.804 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server built: Sep 4 2018 22:28:22 UTC 06-Nov-2018 11:44:05.804 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server number: 8.5.34.0 06-Nov-2018 11:44:05.805 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name: Linux 06-Nov-2018 11:44:05.805 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Version: 4.15.0-36-generic ..... ubuntu@dockervm:~$ curl localhost:8888 YOU Should See Tomcat Home Page HTML
View Docker Logs
docker logs d8e5454419c29ce7b5f5a99b67712474409c8a8c4e30782c2addf38b8c4ccd3c Using CATALINA_BASE: /usr/local/tomcat Using CATALINA_HOME: /usr/local/tomcat Using CATALINA_TMPDIR: /usr/local/tomcat/temp Using JRE_HOME: /docker-java-home/jre Using CLASSPATH: /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar 06-Nov-2018 11:44:05.799 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version: Apache Tomcat/8.5.34 06-Nov-2018 11:44:05.804 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server built: ....
open the OCI Port to access Tomcat from Public Internet
Lets now access the Security List of the VCN that the image is using an Open Port 8888
Reality Check
VM public ip address : 8888
Stopping the Container and Removing them
ubuntu@dockervm:~$ docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES d8e5454419c2 tomcat:latest "catalina.sh run" About an hour ago Up About an hour 0.0.0.0:8888->8080/tcp zealous_bhaskara 8387b99fb6b3 tomcat:latest "catalina.sh run" About an hour ago Exited (130) About an hour ago ubuntu@dockervm:~$ docker rm d8e5454419c2 Error response from daemon: You cannot remove a running container d8e5454419c29ce7b5f5a99b67712474409c8a8c4e30782c2addf38b8c4ccd3c. Stop the container before attempting removal or force remove ubuntu@dockervm:~$ docker stop d8e5454419c2 d8e5454419c2 ubuntu@dockervm:~$ docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES d8e5454419c2 tomcat:latest "catalina.sh run" About an hour ago Exited (143) 2 minutes ago zealous_bhaskara 8387b99fb6b3 tomcat:latest "catalina.sh run" About an hour ago Exited (130) About an hour ago relaxed_lumiere b00519b4ab91 busybox:latest "sleep 100" About an hour ago Exited (0) About an hour ago jolly_torvalds ubuntu@dockervm:~$ docker rm d8e5454419c2 d8e5454419c2
Cleaning Up - Stopping and Removing all containers
ubuntu@dockervm:~$ docker stop $(docker ps -a -q) 8387b99fb6b3 b00519b4ab91 a13c8f04b07b f4d522488e00 6abd29b84824 4c0ebd734c27 c496b254dfd4 bca33f082ed2 cd396b2fde1d ubuntu@dockervm:~$ docker rm $(docker ps -a -q) 8387b99fb6b3 b00519b4ab91 a13c8f04b07b f4d522488e00 6abd29b84824 4c0ebd734c27 c496b254dfd4 bca33f082ed2 cd396b2fde1d ubuntu@dockervm:~$ docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES ..