Docker Basic

# INSTALL DOCKER DI CENTOS 7

# Cara install ikuti pastebin Docker-CE Install (https://pastebin.com/KvTirpCi)

# Verify that it’s running
sudo systemctl status docker

# avoid typing sudo whenever you run the docker command, add your username to the docker group
# You will need to log out of the Droplet and back in as the same user to enable this change
sudo usermod -aG docker $(whoami)

# If you need to add a user to the docker group that you’re not logged in as, declare that username
sudo usermod -aG docker username

# BUILD IMAGE DOCKER

# buat file Dockerfile, kemudian build
sudo docker build -t namaapp .

# run docker
sudo docker run -d -p 80:3001 namaapp

# run docker dengan map volume dan nama container
docker run -d -p 80:3001 -v /var/log/hris:/logs --name namacontainer namaapp:1.0.0

# run docker dengan parameter network dan nama
 docker run -d -p 80:80 --network=mynetwork --name=proxy proxy

# DOCKER COMMANDS

# Get IP address (more on https://docs.docker.com/engine/reference/commandline/inspect/#examples)
sudo docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' 45822cec9889

# melihat isi docker
sudo docker top 6781abeadf13

# melihat statistik docker
sudo docker stats  6781abeadf13

# menjalankan perintah sh di dalam container
docker exec -it frontend /bin/sh
# untuk Alpine menggunakan perintah berikut
docker exec -it 3b17d5882c81 ash

# menambahkan curl di dalam images container
apt-get update
apt-get install curl

# DOCKER NETWORK

# Adding Containers To Same Network, create network
docker network create mynetwork

# add the container by their name to network
docker network connect mynetwork backend
docker network connect mynetwork frontend

# see if they have been added by running
docker network inspect mynetwork

# CONTAINER

# list container by filter
docker container ls -a --filter status=exited --filter status=created

# hapus container by id
docker container rm cc3f2ff51cab cd20b396a061

# hapus all stoped container
docker container prune

# hapus by filter
docker rm $(docker ps -a -q --filter "status=exited")

# uninstall docker
sudo yum remove docker docker-common docker-selinux docker-engine
sudo yum remove -y docker-ce docker-ce-cli