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Questions tagged [docker-buildkit]

52 questions
2
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What is the difference between Kaniko and BuildKit/Buildx?

From what I understand: They are both tools to build container images The build itself runs in a container The build can happen on a remote node, for example in a Kubernetes cluster (Kaniko, BuildKit) They both offer advanced features such as layer…
Yacine Nouri
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How do we run from an intermediary layer with docker buildkit?

With non buildkit mode, when we build, we have this sort of output: ... Step 38/43 : COPY tests . ---> d201e365ba86 Step 39/43 : COPY tools . ---> 13d191aa76c1 Step 40/43 : COPY tox.ini . ---> 4173ecd8eae9 ... If it fails somewhere, we can…
Finch_Powers
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Organizing overlay2 docker layers manually after parallel buildkit build

I am using docker with buildkit and multi-stage builds to create a number of conda environments in parallel then copying them into my final stage. Many of the layers have large complex dependencies and copying each of the environments into the final…
Christopher
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Docker caching with ADD wildcard

I'm not sure about this but I've noticed that the docker layer cache breaks when copying files with wildcards, see the following build context : The issue is that, when modifying the Kernel.php (add a space, anything..) and run docker build again,…
kitensei
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1 answer

How do I reuse the cache from a `RUN --mount=type=cache` docker build?

I'm using the new experimental docker buildkit syntax to do a multistage build, as so: Dockerfile: RUN --mount=type=cache,target=/home/build/.build-cache,gid=1000,uid=1001 ./build bash: DOCKER_BUILDKIT=1 docker build . Works great locally. On CI I…
Robert Elliot
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1 answer

Docker run --mount make all files available in a different folder during RUN

I want to make a folder on my host machine available during a RUN statement. That is, similar to the effect of a container run with -v: docker run -v /path/on/host:/path/in/container mycontainer:tag In the container this gives me /path/in/container…
robertdj
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Using docker buildkit caching with R-packages

I'm trying to use the docker buildkit approach to caching packages to speed up adding packages to docker containers. I learned about it from the instructions for both python and apt-get packages and useful Stackexchange answer on caching python…
jameshowison
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1 answer

Buildctl command to tag multiple images

I am using Buildkit to build and push the images. I would like to add multiple tags on the images in buildctl command. For eg buildctl build --frontend=dockerfile.v0 --local context=. --local dockerfile=.…
PREETI BANSAL
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Is not using --no-cache safe when building Docker image using BuildKit to pass secret

Is there any difference in terms of security of the secret between these 2 commands while building Docker image with Docker Buildkit (export DOCKER_BUILDKIT=1). docker build --no-cache --progress=plain --secret id=mysecret,src=mysecret.txt . With…
giraycoskun
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1 answer

Docker build failed to compute cache key

ITNOA Hi, I have below project structure Mode LastWriteTime Length Name ---- ------------- ------ ---- …
sorosh_sabz
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Docker BuildKit build with tmpfs mount fails the 2nd time around

This works: # note: cache .cache/go-build across docker builds RUN --mount=type=tmpfs,target=/home/myuser/.cache \ pacman -S --needed --noconfirm go && \ su - myuser -c " …
haelix
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buildx fail building multiplatform docker image, becuase it try to copy xattrs (Extended file attributes) and fail doing this

I use buildx to build multiplatform docker image in the gitlab-ci. But the ci fail while building docker image, because it try to copy xattrs and fail to do this: > [linux/arm/v7 2/4] RUN set -xe && apk add --no-cache ca-certificates …
Lukas1818
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1 answer

Is it possible to push docker images for different architectures separately?

From what I know docker buildx build --push will overwrite existing image architectures with the one you specified in --platform parameter. As I understand you have to build and push for all architectures at the same time when using buildx. However,…
chingis
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Docker multi-stage build caching

IIUC, docker doesn't natively support caching multi-stage build layers in a repository. I had expected the results of the multi-stage build to be cached, but is that not the case? For example, take a toy build file: FROM centos:7 as stage_0 RUN…
Maximilian
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Is docker --cache-from using local or remote registry?

I can't find any information regarding which registry (local or remote) is used when using the docker buildkit --cache-from feature. Let's say I run this: export DOCKER_BUILDKIT=1 docker build -t my-registry/my-image-name --build-arg…
Adrien Ball
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