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Emanuil Copil skylock

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@skylock
skylock / docker-examples.md
Created January 25, 2018 12:25 — forked from thaJeztah/docker-examples.md
Some docker examples

Commit, clone a container

To 'clone' a container, you'll have to make an image of that container first, you can do so by "committing" the container. Docker will (by default) pause all processes running in the container during commit to preserve data-consistency.

For example;

docker commit --message="Snapshot of my container" my_container my_container_snapshot:yymmdd
@skylock
skylock / docker-rm-images.md
Created January 30, 2018 12:06 — forked from alferov/docker-rm-images.md
Remove all (untagged) images and containers from Docker
# Delete all containers
docker rm $(docker ps -aq)
# Delete all images
docker rmi $(docker images -q)
# Delete all untagged images
docker rmi $(docker images -q --filter "dangling=true")

References:

Backup:
docker exec -t -u postgres your-db-container pg_dumpall -c > dump_`date +%d-%m-%Y"_"%H_%M_%S`.sql
Restore:
cat your_dump.sql | docker exec -i your-db-container psql -Upostgres
#!/bin/bash
# remove exited containers:
docker ps --filter status=dead --filter status=exited -aq | xargs -r docker rm -v
# remove unused images:
docker images --no-trunc | grep '<none>' | awk '{ print $3 }' | xargs -r docker rmi
# remove unused volumes:
find '/var/lib/docker/volumes/' -mindepth 1 -maxdepth 1 -type d | grep -vFf <(
git rm -r --cached .
git add .
git commit -m "fixing .gitignore"
@skylock
skylock / docker-cleanup
Created April 20, 2018 14:25 — forked from wdullaer/docker-cleanup
Cleanup unused Docker images and containers
#!/bin/sh
# Cleanup docker files: untagged containers and images.
#
# Use `docker-cleanup -n` for a dry run to see what would be deleted.
untagged_containers() {
# Print containers using untagged images: $1 is used with awk's print: 0=line, 1=column 1.
# NOTE: "[0-9a-f]{12}" does not work with GNU Awk 3.1.7 (RHEL6).
# Ref: https://github.com/blueyed/dotfiles/commit/a14f0b4b#commitcomment-6736470
docker ps -a | tail -n +2 | awk '$2 ~ "^[0-9a-f]+$" {print $'$1'}'
@skylock
skylock / install.sh
Created April 20, 2018 14:26 — forked from wdullaer/install.sh
Install Latest Docker and Docker-compose on Ubuntu
# Ask for the user password
# Script only works if sudo caches the password for a few minutes
sudo true
# Install kernel extra's to enable docker aufs support
# sudo apt-get -y install linux-image-extra-$(uname -r)
# Add Docker PPA and install latest version
# sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 36A1D7869245C8950F966E92D8576A8BA88D21E9
# sudo sh -c "echo deb https://get.docker.io/ubuntu docker main > /etc/apt/sources.list.d/docker.list"
@skylock
skylock / create_new_ssh_key.md
Created April 23, 2018 06:01 — forked from JoaquimLey/create_new_ssh_key.md
Generating a new SSH key and adding it to the ssh-agent

##Generating a new ssh-key

Open Terminal. Paste the text below, substituting in your GitHub email address.

ssh-keygen -t rsa -b 4096 -C "[email protected]"

This creates a new ssh key, using the provided email as a label

Generating public/private rsa key pair.

@skylock
skylock / docker-top.sh
Created June 19, 2020 13:14 — forked from jrenggli/docker-top.sh
List all running docker containers and their resources used
docker stats `docker inspect --format='{{.Name}}' $(sudo docker ps -aq --no-trunc) | sed -e 's/\///g'`