Docker to AWS, A journey

I am following this lecture to build from here: https://amigoscode.com/courses/631065/lectures/11260263

Docker Image:

Image is a template for creating an environment of your choice, snapshot, has everything to run your apps, OS, software, app code.

Below code we are pulling Apache httpd in docker desktop:

docker pull httpd

Check the images:

docker images

Run container from this image:

docker run httpd:latest

It will hang up so we write ctrl+c to delete it

we check with this code:

docker container ls

docker run

docker run -d httpd:latest

we check:

docker ps

or

docker container ls

Docker port exposing: before that we are stopping the running container

CONTAINER ID   IMAGE          COMMAND              CREATED              STATUS              PORTS     NAMES
5c14bf083cfe   httpd:latest   "httpd-foreground"   About a minute ago   Up About a minute   80/tcp    objective_roentgen
7c60047c16a0   httpd:latest   "httpd-foreground"   3 minutes ago        Up 3 minutes        80/tcp    intelligent_wiles

docker stop objective_roentgen
docker stop intelligent_wiles

Now writing command for exposing the port and running the container:

docker run -d -p 8080:80 httpd:latest

d for dettach and p for port exposing t

Now the container is running perfectly and exposing the port which we can visit and check with command:

docker ps

 

CONTAINER ID   IMAGE          COMMAND              CREATED         STATUS         PORTS                  NAMES
46077824c7b4   httpd:latest   "httpd-foreground"   3 seconds ago   Up 2 seconds   0.0.0.0:8080->80/tcp   boring_chaplygin

Now going to

http://localhost:8080/

will work perfectly.

It means the container port 80 is exposing to user by port 8080

Now I stopped the container:

docker stop boring_chaplygin

So cannot reach to localhost:8080
Now we want to run in different port we can also follow the step:

docker run -d -p 8095:80 httpd:latest

Now we can also run multiple containers from a single command:

docker run -d -p 3050:80 -p 8060:80 httpd:latest

We stop and start again the docker container:

docker stop lucid_hodgkin

 

docker start lucid_hodgkin

now docker help finding:

docker ps --help

it will show like this:

Usage:  docker ps [OPTIONS]

List containers

Options:
  -a, --all             Show all containers (default shows just running)
  -f, --filter filter   Filter output based on conditions provided
      --format string   Pretty-print containers using a Go template
  -n, --last int        Show n last created containers (includes all states) (default -1)
  -l, --latest          Show the latest created container (includes all states)
      --no-trunc        Don't truncate output
  -q, --quiet           Only display container IDs
  -s, --size            Display total file sizes

removing a container from here:

docker rm objective_brown

we can show id  by

docker ps -aq

it will show like this:

6e76acc8c731
9686c31de12b
46077824c7b4
5c14bf083cfe
7c60047c16a0
0e6293219d47
033ea6143731
aeaaa846803a
f616f2b69cd9
b4d329afdf8d
d9b3aa679977
6d18113160f1
e916576838d6
d7cd7a179f9a
e6a5f1eb2ee7
ed46b147cacb
25aea2cb6569
4f3ef15a6883
c4db01275809
eab7966ed2de
ce74f7d9e722
0568539c9146

when we need to remove running container forcefully

docker rm -f container_name

-f for force

Custom name for docker container:

docker run --name website -d -p 3000:80 -p 8080:80 httpd:latest
docker ps

Now stopping docker container named website

docker stop website

Now running again the docker container:

docker start website

we check containers with command

docker ps

Docker ps formatting:

docker ps --format="ID\t{{.ID}}\nNAME\t{{.Names}}\nIMAGE\t{{.Image}}\nPORTS\t{{.Ports}}\nCOMMAND\t{{.Command}}\t{{.CreatedAt}}\nSTATUS\t{{.Status}}\n"

 

export FORMAT="ID\t{{.ID}}\nNAME\t{{.Names}}\nIMAGE\t{{.Image}}\nPORTS\t{{.Ports}}\nCOMMAND\t{{.Command}}\t{{.CreatedAt}}\nSTATUS\t{{.Status}}\n"
docker ps --format=$FORMAT

Docker volumes: between host and controllers

cd /mnt/c/Users/Zaki/onedrive/desktop/winter2021/cloud/docker-me
docker run --name docker-me-new -v $(pwd) -d -p 8090:80 httpd:latest

pwd=present working directory

Command for without dockerfile inside:

docker run --name docker-me-new -v $(pwd):/usr/local/apache2/htdocs/ -d -p 8090:80 httpd:latest

 

Command for with dockerfile inside:

It would be a great help, if you support by sharing :)
Author: zakilive

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