DevOps on ARI Systems

podman

Mon, 24 Jun 2024 00:15:00 +0000

Usage

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brew install podman
podman info
podman machine init
podman machine init --rootful
podman machine init -m 4096 --disk-size 150
podman machine init --cpus 8 --memory 16384 --disk-size 60 --image=docker://quay.io/podman/machine-os:5.7 
podman machine set --memory 4096
podman machine start
podman machine start --log-level debug
podman machine ls
podman machine ls | detect columns
podman machine ls | detect columns | select NAME
podman search redis | detect columns
podman search redis --filter=is-official
podman run -d -p 8080:80 docker.io/library/nginx
podman ps -q
podman kill CONTAINER_ID_OR_NAME

Rootless

Create new user

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useradd -m -s /bin/bash poduser
passwd poduser
# Optional for sudo privileges
usermod -aG sudo poduser

Switch to new user

Bundan sonra systemctl --user olarak kullanacağız. Bu nedenle sudo veya su - poduser çalışmayacak. Çalışması için çıkış yapıp ssh/konsol üzerinden oluşturduğumuz kullanıcı ile yeniden giriş yapmamız gerekiyor.

Kubernetes

Sun, 09 Oct 2022 00:11:00 +0000

Docker	Kubernetes
docker	podman
docker-desktop	podman-desktop
docker compose, docker swarm	podman compose, kubernetes yaml

podman

Tool for managing OCI containers and pods

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# install podman
brew install podman
# create the virtual machine for podman
podman machine init
# start the virtual machine and set up the connection to podman
podman machine start
# stop the virtual machine
podman machine stop
# connect the vm podman-machine-default
podman machine ssh
# remove the virtual machine
podman machine rm

To create and start the virtual machine that is needed for podman:

Continuous Integration, Continuous Delivery, Continuous Deployment

Tue, 28 Jul 2020 00:00:00 +0000

References

What is Continuous Integration, Continuous Delivery, Continuous Deployment?

Continuous Integration

Developers practicing continuous integration merge their changes back to the main branch as often as possible. The developer’s changes are validated by creating a build and running automated tests against the build. By doing so, you avoid the integration hell that usually happens when people wait for release day to merge their changes into the release branch.

Docker

Sun, 23 Oct 2016 13:13:00 +0000

Platform

Docker Engine and Docker CLI
Docker Compose (formerly “Fig”)
Docker Machine
Docker Swarm Mode
Kitematic
Docker Cloud (formerly “Tutum”)
Docker Datacenter

Log into the Docker Image using the root user

You can log into the Docker Image using the root user (ID = 0) instead of the provided default user when you use the -u option.

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`1`	`docker exec -u 0 -it mycontainer bash`

getting logs

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docker logs [container-name]
docker logs -f --tail 10 container_name // starting from the last 10 lines
docker logs --since=2m <container_id> // since last 2 minutes
docker logs --since=1h <container_id> // since last 1 hour

creating and connecting to a network

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$ docker network create [network-name]
$ docker network inspect [network-name]
$ docker network connect [network-name] [container-name]
$ docker network inspect [network-name]

Running container on network