Adding a direct backend option of the self hosted runner #33
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Adding a direct backend option of the self hosted runner #33
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ianhodge
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bnavetta
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Mar 18, 2026
internal/worker/direct.go
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| // must take precedence over the worker's own WARP_API_KEY). | ||
| cmd := exec.CommandContext(ctx, b.ozPath, params.BaseArgs...) | ||
| cmd.Dir = workspaceDir | ||
| cmd.Env = mergeEnvVars(os.Environ(), envVars) |
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Instead of automatically inheriting env vars, I think it's safer to start with an empty set and use the backend config to opt in specific variables. The worker environment may have sensitive values that individual tasks shouldn't get access to.
We can default to inheriting standard variables like HOME, TMPDIR, and PATH for convenience.
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bnavetta
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| func (b *DirectBackend) runCommand(ctx context.Context, command, dir string, env []string) error { | ||
| cmd := exec.CommandContext(ctx, "/bin/sh", "-c", command) | ||
| cmd.Dir = dir | ||
| cmd.Env = mergeEnvVars(hostBaseEnv(), env) |
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I think setup/teardown commands should probably inherit the worker env, unlike the agent process - that way, they can decide to pass along certain variables.
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As a
Directoption for the backend with relevant parameters. This does not actually mount a docker container but allows for users to run the oz-agent in their own way with setup and teardown commands