How To Use Docker Images Offline
Saving Docker Images Locally and Loading Containers in an Offline Environment
Create Directory for Image .Tar
Are you looking for a way to save a docker image offline or to transfer to an on-premises environment or share with your team?
Create a folder for where you are going to save your docker image.
{% highlight console %}
$ mkdir docker
{% endhighlight %}
Enter Folder
{% highlight console %}
$ cd docker
{% endhighlight %}
Pull Image From Repository
Make sure you have an image from the docker repository of your choice.
Pull image of your choice from dockerhub:
{% highlight console %}
$ docker pull python:3.11-rc-alpine
{% endhighlight %}
Check that your image has been pulled into docker on your computer:
{% highlight console %}
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
python 3.11-rc-alpine 123456h8d987 1 minute ago 51MB
{% endhighlight %}
Save Docker Image Locally
Save the image into tarball on your computer:
{% highlight console %}
$ docker save python:3.11-rc-alpine > python_3_11_alpine.tar
$ls
python_3_11.tar
{% endhighlight %}
You should be able to transfer that .tar file and load it with the following:
{% highlight console %}
$ docker load –input python_3_11_alpine.tar
1234567ds89e8: Loading layer 1.23MB/1.23MB
1234567ds89e8: Loading layer 1.23MB/1.23MB
1234567ds89e8: Loading layer 1.23MB/1.23MB
1234567ds89e8: Loading layer 1.23MB/1.23MB
1234567ds89e8: Loading layer 1.23MB/1.23MB
Loaded image: python:3.11-rc-alpine
{% endhighlight %}
Check if your image is loaded
{% highlight console %}
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
python 3.11-rc-alpine 123456h8d987 1 minute ago 51MB
{% endhighlight %}
{% highlight console %}
$ docker run –name python_3.11 python:3.11-rc-alpine
python_3.11
Check that your image has been pulled into docker on your computer:
{% highlight console %}
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
python 3.11-rc-alpine 123456h8d987 1 minute ago 51MB
{% endhighlight %}
Load and Run Docker Container Locally
Double check that your file transferred to your local offline environment
$ls
python_3_11.tar
{% endhighlight %}
You should be able to transfer that .tar file and load it with the following:
{% highlight console %}
$ docker load –input python_3_11_alpine.tar
1234567ds89e8: Loading layer 1.23MB/1.23MB
1234567ds89e8: Loading layer 1.23MB/1.23MB
1234567ds89e8: Loading layer 1.23MB/1.23MB
1234567ds89e8: Loading layer 1.23MB/1.23MB
1234567ds89e8: Loading layer 1.23MB/1.23MB
Loaded image: python:3.11-rc-alpine
{% endhighlight %}
Check that your image has been pulled into docker on your computer:
{% highlight console %}
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
python 3.11-rc-alpine 123456h8d987 1 minute ago 51MB
{% endhighlight %}
{% highlight console %}
$ docker run –name python_3.11 python:3.11-rc-alpine
python_3.11
Check that your container is running on docker on your computer:
{% highlight console %}
$ docker ps
REPOSITORY TAG IMAGE ID CREATED SIZE
python 3.11-rc-alpine 123456h8d987 1 minute ago 51MB
{% endhighlight %}
Dylan Stencil
Automation Support Engineer
Interested in OT infrastructure, Devops, Website Development, Python Programming, Etc.