how to use docker buildx pushing image to registry use http protocol？

Question

I want to build a multi-arch image and push it to my private registry. However, I got an error

"failed to solve: rpc error: code = Unknown desc = failed to do request: Head https://10.7.121.15/v2/daocloud/multiarch-example/blobs/sha256:4c1976b440416ed5a170b2faf49c05af8f298f7afb07ff1f775b7b1ee7574042 : x509: cannot validate certificate for 10.7.121.15 because it doesn't contain any IP SANs"

when I run command

"docker buildx build --platform linux/arm/v7,linux/arm64/v8,linux/amd64 --tag 10.7.121.15/daocloud/multiarch-example:latest -f multi-arch.dockerfile. --push"

so how to solve it or how to use http protocol pushing image?

Answer 1

Try passing a config file with http: true . See this comment for more details. Eg

[registry."10.7.121.15"]
  http = true
  insecure = true

Answer 2

Try creating a builder like this:

docker buildx create --name ci-builder --driver-opt network=host --use --buildkitd-flags '--allow-insecure-entitlement security.insecure'

Answer 3

The @BMitch answer have solved the issue, but I want to add more details on how to achieve this.

You need to build builder image with the mentioned config. So after creating the config (eg buildkitd.toml ):

[registry."10.7.121.15"]
  http = true
  insecure = true

you should run the following commands:

docker buildx rm mybuilder
docker buildx create --name mybuilder --config ./buildkitd.toml --use
docker buildx inspect --bootstrap

docker buildx build ...

You can omit the first line if you don't need to clean up previously created builder.