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use temporary HOME if home not writable #182

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Merged
gauron99 merged 2 commits into from
Jul 31, 2026
Merged

use temporary HOME if home not writable #182

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25705a8
use temporary HOME if home not writable
maschmid Jul 31, 2026
3ee858b
fix linter
maschmid Jul 31, 2026
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15 changes: 14 additions & 1 deletion internal/git/manager.go
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Original file line number Diff line number Diff line change
Expand Up @@ -129,7 +129,20 @@ func ensureKnownHostsExists() error {
}
sshDir := filepath.Join(home, ".ssh")
if err := os.MkdirAll(sshDir, 0700); err != nil {
return err
// Home directory is not writable (e.g. nonroot distroless container
// where HOME=/). Fall back to a temp directory and point HOME there
// so go-git's SSH transport can find known_hosts.
tmpHome, tmpErr := os.MkdirTemp("", "func-operator-home-*")
if tmpErr != nil {
return fmt.Errorf("home dir not writable (%w) and failed to create temp home: %w", err, tmpErr)
}
sshDir = filepath.Join(tmpHome, ".ssh")
if mkErr := os.MkdirAll(sshDir, 0700); mkErr != nil {
return fmt.Errorf("failed to create .ssh in temp home: %w", mkErr)
}
if setErr := os.Setenv("HOME", tmpHome); setErr != nil {
return fmt.Errorf("failed to set HOME to temp dir: %w", setErr)
}
}
knownHostsPath := filepath.Join(sshDir, "known_hosts")
if _, err := os.Stat(knownHostsPath); os.IsNotExist(err) {
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