Issue
I created a docker image from openjdk:8-jdk-alpine but when I try to execute simple commands I get the following errors:
RUN bash
/bin/sh: bash: not found
RUN ./gradlew build
env: can't execute 'bash': No such file or directory
Solution
Alpine docker image doesn't have bash installed by default. You will need to add the following commands to get bash
:
RUN apk update && apk add bash
If you're using Alpine 3.3+
then you can just do:
RUN apk add --no-cache bash
To keep the docker image size small. (Thanks to comment from @sprkysnrky)
If you just want to connect to the container and don't need bash, you can use:
docker run --rm -i -t alpine /bin/sh --login
Answered By - anubhava Answer Checked By - David Marino (WPSolving Volunteer)