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contributor-guide-building-your-kubernetes-tool.md

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Client Tool Release Publishing Guidelines

Projects should publish releases for client side tools.

Go Projects

Static Linking

See Go executables are statically linked, except when they are not.

  • How to compile a statically linked binary: go file must be compiled without cgo support.
# Disable cgo
export CGO_ENABLED=0
  • How to check if a binary is statically linked
# List dynamic dependencies (shared libraries):
# 1. if it's dynamically linked, you'll see
$ ldd <your_tool> 
    linux-vdso.so.1 =>  (0x00007ffe937ea000)
    libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f0a7dae5000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f0a7d720000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f0a7dd03000)
# 2. if it's statically linked, you'll see
$ ldd <your_tool>  
	not a dynamic executable

# Recognize the type of data in a file
# 1. if it's dynamically linked, you'll see
$ file <your_tool> 
/usr/local/your_tool: ELF 64-bit LSB  executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, BuildID[sha1]=86c6d2ff21297a06cc7319244f35e2671612beae, not stripped
# 2. if it's statically linked, you'll see
$ file  <your_tool>  
/usr/local/your_tool: ELF 64-bit LSB  executable, x86-64, version 1 (SYSV), statically linked, not stripped

Targets

Build your release binary for the following targets:

  • darwin-amd64
  • linux-386
  • linux-amd64
  • linux-armv6l
  • linux-ppc64le
  • windows-amd64

Packaging

Package binaries into a tar.gz file and make available on GitHub releases page.

Service Side Release Publishing Guidelines

Packaging

Server side programs should be packaged into container images. Stateless services should be run as Deployments (as opposed to Replication Controllers).

Documentation Guidelines

TODO: Write this