dockerfiles: resolve ARM64 build issues

[patrick-stephens]

Signed-off-by: Patrick Stephens [email protected]

Aligned the Arm and Amd builds to use almost identical approaches to resolve issues with managing cross compilation dependencies based on backports. This also will help with a multi-arch build eventually. No longer uses amd64 build now but native arm64 which seems to be almost as fast.

Also noticed that the arm64 build relies on copying the source in unlike all the others so updated that too.

Fixes #4404 for arm64.

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Testing
Before we can approve your change; please submit the following in a comment:

• [NA] Example configuration file for the change
• Debug log output from testing the change

cd dockerfiles
docker build --build-arg FLB_TARBALL=https://github.com/fluent/fluent-bit/archive/v1.8.10.tar.gz -t arm64-test -f Dockerfile.arm64v8 .
docker run --rm -it arm64-test
WARNING: The requested image's platform (linux/arm64/v8) does not match the detected host platform (linux/amd64) and no specific platform was requested
Fluent Bit v1.8.10
* Copyright (C) 2019-2021 The Fluent Bit Authors
* Copyright (C) 2015-2018 Treasure Data
* Fluent Bit is a CNCF sub-project under the umbrella of Fluentd
* https://fluentbit.io

[2021/12/08 11:50:56] [ info] [engine] started (pid=1)
[2021/12/08 11:50:56] [ info] [storage] version=1.1.5, initializing...
[2021/12/08 11:50:56] [ info] [storage] in-memory
[2021/12/08 11:50:56] [ info] [storage] normal synchronization mode, checksum disabled, max_chunks_up=128
[2021/12/08 11:50:56] [ info] [cmetrics] version=0.2.2
[2021/12/08 11:50:56] [ info] [sp] stream processor started
^C[2021/12/08 11:50:57] [engine] caught signal (SIGINT)
[2021/12/08 11:50:57] [ info] [input] pausing cpu.0
[0] cpu.local: [1638964257.492756921, {"cpu_p"=>0.750000, "user_p"=>0.437500, "system_p"=>0.312500, "cpu0.p_cpu"=>1.000000, "cpu0.p_user"=>1.000000, "cpu0.p_system"=>0.000000, "cpu1.p_cpu"=>4.000000, "cpu1.p_user"=>1.000000, "cpu1.p_system"=>3.000000, "cpu2.p_cpu"=>0.000000, "cpu2.p_user"=>0.000000, "cpu2.p_system"=>0.000000, "cpu3.p_cpu"=>1.000000, "cpu3.p_user"=>0.000000, "cpu3.p_system"=>1.000000, "cpu4.p_cpu"=>1.000000, "cpu4.p_user"=>1.000000, "cpu4.p_system"=>0.000000, "cpu5.p_cpu"=>0.000000, "cpu5.p_user"=>0.000000, "cpu5.p_system"=>0.000000, "cpu6.p_cpu"=>1.000000, "cpu6.p_user"=>1.000000, "cpu6.p_system"=>0.000000, "cpu7.p_cpu"=>0.000000, "cpu7.p_user"=>0.000000, "cpu7.p_system"=>0.000000, "cpu8.p_cpu"=>1.000000, "cpu8.p_user"=>1.000000, "cpu8.p_system"=>0.000000, "cpu9.p_cpu"=>0.000000, "cpu9.p_user"=>0.000000, "cpu9.p_system"=>0.000000, "cpu10.p_cpu"=>0.000000, "cpu10.p_user"=>0.000000, "cpu10.p_system"=>0.000000, "cpu11.p_cpu"=>0.000000, "cpu11.p_user"=>0.000000, "cpu11.p_system"=>0.000000, "cpu12.p_cpu"=>1.000000, "cpu12.p_user"=>1.000000, "cpu12.p_system"=>0.000000, "cpu13.p_cpu"=>0.000000, "cpu13.p_user"=>0.000000, "cpu13.p_system"=>0.000000, "cpu14.p_cpu"=>1.000000, "cpu14.p_user"=>1.000000, "cpu14.p_system"=>0.000000, "cpu15.p_cpu"=>0.000000, "cpu15.p_user"=>0.000000, "cpu15.p_system"=>0.000000}]
[2021/12/08 11:50:57] [ warn] [engine] service will stop in 5 seconds
^C[2021/12/08 11:51:02] [ info] [engine] service stopped

• [NA] Attached Valgrind output that shows no leaks or memory corruption was found

Documentation

• [NA] Documentation required for this feature

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Fluent Bit is licensed under Apache 2.0, by submitting this pull request I understand that this code will be released under the terms of that license.

[patrick-stephens]

Messed up git so closing this, actual PR now #4408