docker

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kafka – stand up a test instance with SSL for testing

Posted on by jlim0930

I had a need to stand up a Kafka instance with SSL to test SSL handshakes. Today was the first time looking at Kafka so needless to say I was a bit lost. 🙁 Started out looking up various projects and found some interesting things that enabled me to setup a instance of kafka using docker containers with SSL. Requirements: git, docker, docker-compose installed on your server. Clone wurstmeister/kafka repo Get confluent’s kafka-generate-ssl.sh script, run it and follow all the instructions. Please make sure to remember the passphrase and the truststore/keystore passwords. This will generate the following Create “certs” directory… Continue Reading →

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Docker Common Commands: 101 Part 2

Posted on by jlim0930

The comprehensive Docker command line reference is located here. However we will cover some basic commands. Image Build an image docker build -rm=true . Install an image docker pull ${IMAGE} List of installed images docker images docker images –tree (tree view) docker images -no-trunc (detailed listing) Remove an image docker rmi ${IMAGE_ID} Remove all untagged images docker rmi $(docker images | grep “^” awk ‘{ print $3 }’) Remove all images docker rm $(docker ps -aq) Container Run a container docker run (many other options on this) List containers docker ps docker ps -a (list all containers) Stop a container… Continue Reading →

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Docker on CentOS/RHEL7 101 Part 1

Posted on by jlim0930

My journey with Docker. Installing Docker on CentOS/RHEL7 $ sudo yum install docker $ sudo systemctl start docker $ sudo systemctl enable docker NOTE: if you are using firewalld make sure that firewalld is started before Docker. Also if firewalld is restarted please make sure to restart Docker afterwards. Now that Docker is installed lets pull a image and play with it a bit. $ sudo docker pull centos # pulls the latest centos7 container Trying to pull repository docker.io/centos … fd44297e2ddb: Download complete 6941bfcbbfca: Download complete 41459f052977: Download complete Status: Image is up to date for docker.io/centos:latest $ sudo… Continue Reading →