snapenv

Documentation

Index

• Constants
• func ExecEnv(info *snap.Info, extra map[string]string) []string

Constants

const PreservedUnsafePrefix = "SNAP_SAVED_"

Functions

func ExecEnv

func ExecEnv(info *snap.Info, extra map[string]string) []string

ExecEnv returns the full environment that is required for snap-{confine,exec}(like SNAP_{NAME,REVISION} etc are all set).

It merges it with the existing os.Environ() and ensures the SNAP_* overrides the any pre-existing environment variables. For a classic snap, environment variables that are usually stripped out by ld.so when starting a setuid process are renamed by prepending PreservedUnsafePrefix -- which snap-exec will remove, restoring the variables to their original names.

With the extra parameter additional environment variables can be supplied which will be set in the execution environment.