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How can I add a user with Dockerfile - the following does not work.
USER vault WORKDIR /usr/local/bin/vault My full Dockerfile:
FROM alpine:3.4 RUN apk update && apk add curl unzip RUN useradd -ms /bin/bash vault USER vault WORKDIR /usr/local/bin/vault ADD /vault.hcl /etc/vault/vault.hcl RUN curl -SL https://releases.hashicorp.com/vault/0.5.0/vault_0.5.0_linux_amd64.zip > vault.zip RUN unzip vault.zip -d /usr/local/bin && rm vault.zip 
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Using Dockerfile Docker allows you to add the User using the −u flag along with the useradd command and then using the USER instruction, you can decide which user you want to be logged in as when you start the Docker Container.
The default user in a Dockerfile is the user of the parent image. For example, if your image is derived from an image that uses a non-root user example: swuser , then RUN commands in your Dockerfile will run as swuser .
Use useradd instead of its interactive adduser to add user.
RUN useradd -ms /bin/bash vault Below command will not create user .
USER vault WORKDIR /usr/local/bin/vault it will use vault user
please Refer Dockerfile User Documentation
The USER instruction sets the user name or UID to use when running the image and for any RUN, CMD and ENTRYPOINT instructions that follow it in the Dockerfile.
NOTE : Ensures that bash is the default shell.
If default shell is /bin/sh you can do like:
RUN ln -sf /bin/bash /bin/sh RUN useradd -ms /bin/bash vault If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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