CODEWITHSUNDEEP
linuxdockeralpine-linux
R.Smith
R.Smith

Reputation: 3

apk installed package not available in container

I'm building an image using alpine linux as follows:

FROM alpine:3.7

RUN apk update \
apk upgrade \
apk add bash

CMD ["sh","ls"]

I'm expecting bash to be available in the container but when I run it it can't find bash

docker run -it --rm tmp:latest /bin/sh
/ # bash
/bin/sh: bash: not found

If anybody can help me understand why it's not available it would be much appreciated!

Upvotes: 0

Views: 1526

Answers (1)

cam
cam

Reputation: 5198

Try adding && after each apk command, like the Dockerfile below. When docker builds your container, your original RUN line expanded to the single command apk update apk upgrade apk add bash instead of separate commands. So the apk add bash command wasn't properly run when you built the image.

FROM alpine:3.7

RUN apk update \
 && apk upgrade \
 && apk add bash

CMD ["sh","ls"]

You should combine separate commands with && so if one fails, this will be reported when building the image.

Upvotes: 1

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