How to define a variable in a Dockerfile?

How to define a variable in a Dockerfile?

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docker

Declaring variables in docker-compose

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docker

Is there way in docker compose to create the cross service constant?

docker variables duplicates docker-compose code-duplication

docker

Can variables in Azure Pipelines be used in NodeJS code?

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docker

How to make a Docker environment variable value to get a random id

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docker

How to pass variables from .gitlab.ci.yml to Dockerfile

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docker

Docker compose variables

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docker

ansible docker env var not available in container

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docker

Send variables into docker container to use in a script

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docker

ansible-container variables in playbook [closed]

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docker

`docker run` output to bash variable - strange behaviour

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