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:
Check the images:
Run container from this image:
It will hang up so we write ctrl+c to delete it
we check with this code:
docker run
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docker run -d httpd:latest |
we check:
or
Docker port exposing: before that we are stopping the running container
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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:
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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:
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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
will work perfectly.
It means the container port 80 is exposing to user by port 8080
Now I stopped the container:
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docker stop boring_chaplygin |
So cannot reach to localhost:8080
Now we want to run in different port we can also follow the step:
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docker run -d -p 8095:80 httpd:latest |
Now we can also run multiple containers from a single command:
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docker run -d -p 3050:80 -p 8060:80 httpd:latest |
We stop and start again the docker container:
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docker stop lucid_hodgkin |
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docker start lucid_hodgkin |
now docker help finding:
it will show like this:
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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:
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docker rm objective_brown |
we can show id by
it will show like this:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 |
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
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docker rm -f container_name |
-f for force
Custom name for docker container:
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docker run --name website -d -p 3000:80 -p 8080:80 httpd:latest |
Now stopping docker container named website
Now running again the docker container:
we check containers with command
Docker ps formatting:
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docker ps --format="ID\t{{.ID}}\nNAME\t{{.Names}}\nIMAGE\t{{.Image}}\nPORTS\t{{.Ports}}\nCOMMAND\t{{.Command}}\t{{.CreatedAt}}\nSTATUS\t{{.Status}}\n" |
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export FORMAT="ID\t{{.ID}}\nNAME\t{{.Names}}\nIMAGE\t{{.Image}}\nPORTS\t{{.Ports}}\nCOMMAND\t{{.Command}}\t{{.CreatedAt}}\nSTATUS\t{{.Status}}\n" |
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docker ps --format=$FORMAT |
Docker volumes: between host and controllers
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cd /mnt/c/Users/Zaki/onedrive/desktop/winter2021/cloud/docker-me |
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docker run --name docker-me-new -v $(pwd) -d -p 8090:80 httpd:latest |
pwd=present working directory
