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Questions - docker-buildkit

How can I read --secret args passed to docker build as environment variables to write to a file?

I'm trying to use the secrets Buildkit feature. I want to inject the secret via an environment variable- not a file. I'm running this build command DOCKER_BUILDKIT=1 \ MYSECRET=theverysecretpassword \...
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red888

docker

dockerfile

docker-buildkit

Votes: 0

Answers: 1

Latest Answer

I suggest writig the content of .condarc locally to a file and mount that right away to the right place. docker build --secret id=condarc,src=.condarc . And in the Dockerfile mount it like this: RUN ...
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The Fool

Does Docker or any of its plugins support conditional syntax where certain blocks of RUN commands can be selectively executed?

I am trying the create a single Dockerfile for my development environments that I can use to customize an image by setting various flags. The following example illustrates this point, I'm currently us...
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user1172468

docker

docker-buildkit

buildx

Votes: 0

Answers: 1

Latest Answer

What you show is the only conditional syntax any version of Docker supports. See the standard Dockerfile reference, the BuildKit Dockerfile extensions, and Build images with BuildKit; none of them su...
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David Maze

Docker build command using Buildkit secrets fails in Gitlab

My Dockerfile (somewhat redacted here) looks like this: FROM python:3.9.9-slim-bullseye WORKDIR /tmp RUN --mount=type=secret,id=token echo "$(cat /run/secrets/token)" >> /tmp/token ...
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rock'n rolla

docker

gitlab

docker-buildkit

Votes: 0

Answers: 2

Latest Answer

env option on --secret added in the newer versions of docker. If you want to read the secret content from env, you can use process substitution like <(echo $TOKEN): DOCKER_BUILDKIT=1 docker build -...
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meshkati

Can I persist yarn install cache during docker build using RUN --mount=type=bind?

I'm trying to generate and re-use a yarn install cache when building a Docker image using Docker BuildKit. The yarn cache is persisted in the directory .yarn/cache and should never be included in the ...
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Gianluca Venturini

docker

dockerfile

yarnpkg

google-cloud-build

docker-buildkit

Votes: 0

Answers: 3

Latest Answer

If you are using the default base node image, e.g. node:16, you can accomplish what you want by doing something like that: FROM node:16 WORKDIR /app COPY package.json . COPY yarn.lock . RUN --mount=ty...
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Charles Santos

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