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It is believed that many inexperienced people do not know what to do about how to add environment variables to the cloud container. Therefore, this article summarizes the causes and solutions of the problem. Through this article, I hope you can solve this problem.

How to add environment variables to the cloud container? When writing dockerfile, we can set the relevant environment variables for the docker container through ENV, and the set environment variables can be referenced by environment variables in the Docker container.

Docker container environment variable setting method: using the ENV directive in Dockerfile can be used to set environment variables for the docker container. Use docker run-env = to modify the environment variable.

Setting environment variables in Dockerfile directive

The environment variable of the container can be set by using the ENV instruction in Dockerfile. such as

ENV PAR= "1234" sets the value of the environment variable PAR to "1234"

Setting environment variables in the docker run command

The-e option in the docker run command sets the environment variable of the container. such as

-e PAR= "56789" sets the value of the environment variable PAR to "56789"

If the environment variable set in the docker run command has the same name as the environment variable set in Dockerfile, the environment variable set in Dockerfile will be overwritten.

After reading the above, have you mastered how to add environment variables to the cloud container? If you want to learn more skills or want to know more about it, you are welcome to follow the industry information channel, thank you for reading!

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