Category: Docker – Page 2

Create Kubernetes cluser using gcloud

Posted on February 10, 2019 (March 14, 2019) by ServerOk

gcloud auth login

1	gcloud auth login

Set default region

gcloud config set compute/zone us-central1-a

1	gcloud config set compute/zone us-central1-a

To create a cluser, run

gcloud container clusters create CLUSTER-NAME

1	gcloud container clusters create CLUSTER-NAME

To create a cluster with 2 nodes, run

gcloud container clusters create CLUSTER-NAME --num-nodes 2

1	gcloud container clusters create CLUSTER-NAME --num-nodes 2

To specify compute engine type during cluster creation, run

gcloud container clusters create CLUSTER-NAME --num-nodes 2 --machine-type n1-standard-2

1	gcloud container clusters create CLUSTER-NAME --num-nodes 2 --machine-type n1-standard-2

You can also specify scopes, this allow you to give the cluster permission to access other google cloud resources. For example […]

Docker container start on boot

Posted on January 2, 2019 by ServerOk

To set a docker container to start on system reboot, run

docker update --restart=unless-stopped CONTAINER_ID

1	docker update --restart=unless-stopped CONTAINER_ID

Replace CONTAINER_ID with actual ID of your container. […]

Docker Nginx Proxy

Posted on December 23, 2018 by ServerOk

Docker Nginx Proxy allow you to run multiple docker containers on same server behind nginx proxy. This is done using https://github.com/jwilder/nginx-proxy To do this, you need a server with port 80 and 443 unused. To setup nginx proxy, run following

cd /root/
git clone https://github.com/evertramos/docker-compose-letsencrypt-nginx-proxy-companion.git
cd docker-compose-letsencrypt-nginx-proxy-companion
cp .env.sample .env
./start.sh

cd /root/

git clone https://github.com/evertramos/docker-compose-letsencrypt-nginx-proxy-companion.git

cd docker-compose-letsencrypt-nginx-proxy-companion

cp .env.sample .env

./start.sh

This will start nginx proxy. You can modify .env file if you want. Starting […]

Docker Build

Posted on May 4, 2018 (April 26, 2021) by ServerOk

Build a docker container with Apache docker build command is used to create a docker image from Dockerfile. To create an image, first lets create a working directory and change to the directory.

mkdir ~/my-docker-image
cd ~/my-docker-image

1 2	mkdir ~/my-docker-image cd ~/my-docker-image

Create a file with name Dockerfile

vi Dockerfile

1	vi Dockerfile

Put following content in it

FROM ubuntu:18.04

RUN apt update && apt upgrade -y

CMD ["/bin/bash"]

FROM ubuntu:18.04

RUN apt update && apt upgrade -y

CMD ["/bin/bash"]

Now build the docker image with

docker build -t my-ubuntu .

1	docker build -t my-ubuntu .

This […]

Installing Docker on Ubuntu 16.04

Posted on March 10, 2018 (March 10, 2018) by ServerOk

To install docker on Ubuntu 16.04, run

wget -qO- https://get.docker.com/ | sh

1	wget -qO- https://get.docker.com/ \| sh

To run docker commands as your user, run

usermod -aG docker your-user

1	usermod -aG docker your-user

Docker […]

docker search

Posted on March 3, 2018 (March 3, 2018) by ServerOk

docker search command allows you to search for images in docker hub. Example

root@ok:~# docker search nginx
NAME                                                   DESCRIPTION                                     STARS               OFFICIAL            AUTOMATED
nginx                                                  Official build of Nginx.                        8043                [OK]                
jwilder/nginx-proxy                                    Automated Nginx reverse proxy for docker con…   1284                                    [OK]
richarvey/nginx-php-fpm                                Container running Nginx + PHP-FPM capable of…   526                                     [OK]
jrcs/letsencrypt-nginx-proxy-companion                 LetsEncrypt container to use with nginx as p…   320                                     [OK]
kong                                                   Open-source Microservice & API Management la…   160                 [OK]                
webdevops/php-nginx                                    Nginx with PHP-FPM                              97                                      [OK]
kitematic/hello-world-nginx                            A light-weight nginx container that demonstr…   95                                      
bitnami/nginx                                          Bitnami nginx Docker Image                      44                                      [OK]
linuxserver/nginx                                      An Nginx container, brought to you by LinuxS…   33                                      
1and1internet/ubuntu-16-nginx-php-phpmyadmin-mysql-5   ubuntu-16-nginx-php-phpmyadmin-mysql-5          26                                      [OK]
tobi312/rpi-nginx                                      NGINX on Raspberry Pi / armhf                   18                                      [OK]
wodby/drupal-nginx                                     Nginx for Drupal container image                9                                       [OK]
webdevops/nginx                                        Nginx container                                 8                                       [OK]
blacklabelops/nginx                                    Dockerized Nginx Reverse Proxy Server.          8                                       [OK]
nginxdemos/nginx-ingress                               NGINX Ingress Controller for Kubernetes         8                                       
centos/nginx-18-centos7                                Platform for running nginx 1.8 or building n…   6                                       
nginxdemos/hello                                       NGINX webserver that serves a simple page co…   4                                       [OK]
1science/nginx                                         Nginx Docker images that include Consul Temp…   4                                       [OK]
behance/docker-nginx                                   Provides base OS, patches and stable nginx f…   2                                       [OK]
pebbletech/nginx-proxy                                 nginx-proxy sets up a container running ngin…   2                                       [OK]
toccoag/openshift-nginx                                Nginx reverse proxy for Nice running on same…   1                                       [OK]
travix/nginx                                           NGinx reverse proxy                             1                                       [OK]
mailu/nginx                                            Mailu nginx frontend                            0                                       [OK]
goodguide/nginx-application-proxy                      No-configuration Nginx reverse proxy for a R…   0                                       [OK]
ppc64le/nginx                                          Official build of Nginx.                        0                                       
root@ok:~#

root@ok:~# docker search nginx

NAME DESCRIPTION STARS OFFICIAL AUTOMATED

nginx Official build of Nginx. 8043 [OK]

jwilder/nginx-proxy Automated Nginx reverse proxy for docker con… 1284 [OK]

richarvey/nginx-php-fpm Container running Nginx + PHP-FPM capable of… 526 [OK]

jrcs/letsencrypt-nginx-proxy-companion LetsEncrypt container to use with nginx as p… 320 [OK]

kong Open-source Microservice & API Management la… 160 [OK]

webdevops/php-nginx Nginx with PHP-FPM 97 [OK]

kitematic/hello-world-nginx A light-weight nginx container that demonstr… 95

bitnami/nginx Bitnami nginx Docker Image 44 [OK]

linuxserver/nginx An Nginx container, brought to you by LinuxS… 33

1and1internet/ubuntu-16-nginx-php-phpmyadmin-mysql-5 ubuntu-16-nginx-php-phpmyadmin-mysql-5 26 [OK]

tobi312/rpi-nginx NGINX on Raspberry Pi / armhf 18 [OK]

wodby/drupal-nginx Nginx for Drupal container image 9 [OK]

webdevops/nginx Nginx container 8 [OK]

blacklabelops/nginx Dockerized Nginx Reverse Proxy Server. 8 [OK]

nginxdemos/nginx-ingress NGINX Ingress Controller for Kubernetes 8

centos/nginx-18-centos7 Platform for running nginx 1.8 or building n… 6

nginxdemos/hello NGINX webserver that serves a simple page co… 4 [OK]

1science/nginx Nginx Docker images that include Consul Temp… 4 [OK]

behance/docker-nginx Provides base OS, patches and stable nginx f… 2 [OK]

pebbletech/nginx-proxy nginx-proxy sets up a container running ngin… 2 [OK]

toccoag/openshift-nginx Nginx reverse proxy for Nice running on same… 1 [OK]

travix/nginx NGinx reverse proxy 1 [OK]

mailu/nginx Mailu nginx frontend 0 [OK]

goodguide/nginx-application-proxy No-configuration Nginx reverse proxy for a R… 0 [OK]

ppc64le/nginx Official build of Nginx. 0

root@ok:~#

To see results with 4 or more stars, use

docker search --filter stars=4

1	docker search --filter stars=4

docker […]

Docker Login

Posted on March 3, 2018 by ServerOk

docker login command allows you to login to docker.com. You need to login to docker before you can upload your own images to docker hub. This is also needed if you need to pull down a private image.

root@ok:~# docker login
Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://hub.docker.com to create one.
Username: serverok
Password: 
Login Succeeded
root@ok:~#

root@ok:~# docker login

Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://hub.docker.com to create one.

Username: serverok

Password:

root@ok:~#

if you need to login to a different docker registery, for example your company docker registery, […]

portainer – Web based UI for Docker

Posted on February 27, 2018 (October 4, 2020) by ServerOk

Portainer is a web based UI for managing docker. https://portainer.io/ You can run it with command

docker volume create portainer_data
docker run -d -p 8000:8000 -p 9000:9000 --name=portainer --restart=always -v /var/run/docker.sock:/var/run/docker.sock -v portainer_data:/data portainer/portainer-ce

1 2	docker volume create portainer_data docker run -d -p 8000:8000 -p 9000:9000 --name=portainer --restart=always -v /var/run/docker.sock:/var/run/docker.sock -v portainer_data:/data portainer/portainer-ce

Now login to portainer with url http://YOUR_SERVER_IP:9000 docker […]

Docker detach container

Posted on February 17, 2018 by ServerOk

Docker container stop once the main program it started with stop running. If you start a docker container with console using -ti option, it stop when you disconnect. To avoid process getting stopped, you can detach from the console. This is done by pressing keys

CTRL + P

CTRL + P

Followed by

CTRL + Q

CTRL + Q

You can just press CTRL key, […]

docker images

Posted on February 4, 2018 by ServerOk

docker images command list all docker images (blueprints) available on your server.

root@ok:~# docker images
REPOSITORY                     TAG                 IMAGE ID            CREATED             SIZE
gcr.io/tensorflow/tensorflow   latest              04f0b1131389        9 months ago        1.13GB
tensorflow/tensorflow          1.1.0               04f0b1131389        9 months ago        1.13GB
root@ok:~#

root@ok:~# docker images

REPOSITORY TAG IMAGE ID CREATED SIZE

gcr.io/tensorflow/tensorflow latest 04f0b1131389 9 months ago 1.13GB

tensorflow/tensorflow 1.1.0 04f0b1131389 9 months ago 1.13GB

root@ok:~#

[…]