deps: update docker.io/library/alpine docker tag to v3.21.0

[renovate-bot]

This PR contains the following updates:

Package	Type	Update	Change
docker.io/library/alpine	stage	minor	3.20.3 -> 3.21.0

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[JoeWang1127]

/gcbrun

[JoeWang1127]

/gcbrun

[JoeWang1127]

/gcbrun

[JoeWang1127]

Library generation integration test failed:

Error loading shared library libucontext.so.1: No such file or directory (needed by /lib/GLIBCFAKE.so.0)
--rpc-plugin_out: protoc-gen-rpc-plugin: Plugin failed with status code 127.

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[diegomarquezp]

Looks like there was a force-push in that repo - see https://gitlab.com/manoel-linux1/GlibMus-HQ/-/commit/7717dd4dc26377dd9cedcc92b72ebf35f9e68a2d says "No related branches found"

[JoeWang1127]

Looks like there was a force-push in that repo - see https://gitlab.com/manoel-linux1/GlibMus-HQ/-/commit/7717dd4dc26377dd9cedcc92b72ebf35f9e68a2d says "No related branches found"

Is this related to the repo? I thought it was something in the alpine image.

[diegomarquezp]

The repo's scripts produce a set of shared objects (e.g. GLIBCFAKE.so) necessary to run glibc binaries such as grpc (i.e. grpc needs binary dependencies not present in alpine by default). Since both this stage and the final image come from Alpine (no GLIBC-compatible shared objects), the only source of the necessary shared objects is the scripts in this repo.

By the way, this doesn't error on my local :( - I'll see if the Docker version or cache is involved in reproductibility.

edit: the action can also build the image - I misread the logs. It's when calling the grpc plugin that it fails to find the necessary binary dependencies.

[diegomarquezp]

Update: found the necessary shared objects

e67c72c9d6c6:/workspace# libtree -pvvv /grpc/*
/grpc/protoc-gen-grpc-java-1.68.2-linux-x86_64.exe 
├── /lib/libpthread.so.0 [default path]
│   ├── /lib/libc.musl-x86_64.so.1 [default path]
│   ├── /usr/lib/libobstack.so.1 [default path]
│   │   └── /lib/libc.musl-x86_64.so.1 [default path]
│   ├── /usr/lib/libgcc_s.so.1 [default path]
│   │   └── /lib/libc.musl-x86_64.so.1 [default path]
│   ├── /usr/lib/libstdc++.so.6 [default path]
│   │   ├── /lib/libc.musl-x86_64.so.1 [default path]
│   │   └── /usr/lib/libgcc_s.so.1 [default path]
│   │       └── /lib/libc.musl-x86_64.so.1 [default path]
│   └── libucontext.so.1 not found
│       ┊ Paths considered in this order:
│       ┊ 1. rpath:
│       ┊ 2. LD_LIBRARY_PATH was not set
│       ┊ 3. runpath was not set
│       ┊ 4. ld config files:
│       ┊ 5. Standard paths:
│       ┊    /lib
│       ┊    /lib64
│       ┊    /usr/lib
│       ┊    /usr/lib64
├── /lib/libc.so.6 [default path]
│   ├── /lib/libc.musl-x86_64.so.1 [default path]
│   ├── /usr/lib/libobstack.so.1 [default path]
│   │   └── /lib/libc.musl-x86_64.so.1 [default path]
│   ├── /usr/lib/libgcc_s.so.1 [default path]
│   │   └── /lib/libc.musl-x86_64.so.1 [default path]
│   ├── /usr/lib/libstdc++.so.6 [default path]
│   │   ├── /lib/libc.musl-x86_64.so.1 [default path]
│   │   └── /usr/lib/libgcc_s.so.1 [default path]
│   │       └── /lib/libc.musl-x86_64.so.1 [default path]
│   └── libucontext.so.1 not found
│       ┊ Paths considered in this order:
│       ┊ 1. rpath:
│       ┊ 2. LD_LIBRARY_PATH was not set
│       ┊ 3. runpath was not set
│       ┊ 4. ld config files:
│       ┊ 5. Standard paths:
│       ┊    /lib
│       ┊    /lib64
│       ┊    /usr/lib
│       ┊    /usr/lib64
├── /usr/lib/libstdc++.so.6 [default path]
│   ├── /lib/libc.musl-x86_64.so.1 [default path]
│   └── /usr/lib/libgcc_s.so.1 [default path]
│       └── /lib/libc.musl-x86_64.so.1 [default path]
└── libm.so.6 not found
    ┊ Paths considered in this order:
    ┊ 1. rpath:
    ┊ 2. LD_LIBRARY_PATH was not set
    ┊ 3. runpath was not set
    ┊ 4. ld config files:
    ┊ 5. Standard paths:
    ┊    /lib
    ┊    /lib64
    ┊    /usr/lib
    ┊    /usr/lib64

I'll try to create a PR based on this one to include them.
edit: just added them in here (9bb5cfe)

[diegomarquezp]

/gcbrun

[JoeWang1127]

/gcbrun

[JoeWang1127]

@diegomarquezp thanks for the help.