test: add a local Docker test environment for all features
testenv/ starts two real NetBox 4.7 instances (v2 and v1 token), SSH targets on public, mgmt, and prod networks, a jump host, an IPv6-only host, a static host, and a client with ssh, sftp, scp, tmux, zellij, bash, zsh, and fish. A seed script fills NetBox through the REST API. 141 end-to-end checks cover cache and refresh filters, connecting, all resolver strategies, multiple instances, shortcuts and rewrites, SSH options and rules, static hosts, sftp/scp incl. IPv6 and jump hosts, tunnels, local notes and NetBox comments, completion and shell hooks, the TUI (driven through tmux), the configurator, and uninstall. Local only: testenv/up.sh, test.sh, shell.sh, down.sh. Not part of CI/CD. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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# netssh test environment
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A local Docker environment for testing every netssh feature against real
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services: two NetBox instances, SSH targets on three networks, a jump host,
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and a client with ssh, sftp, scp, tmux, zellij, bash, zsh, and fish. It is for
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local use only and is not part of CI/CD.
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```sh
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testenv/up.sh # build, start, seed NetBox (first start ~6 min, then ~1 min)
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testenv/test.sh # run all tests; testenv/test.sh tunnel runs only matching files
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testenv/shell.sh # interactive shell in the client, netssh configured
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testenv/down.sh # stop and delete everything (volumes, generated state)
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```
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`test.sh` rebuilds the client image first, so the tests always run the current
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source. `NO_BUILD=1 testenv/test.sh` skips that. Exit code 1 if any check fails.
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Requirements: Docker with Compose v2, about 3 GB RAM, ports 18000/18001 on
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127.0.0.1 free.
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## Topology
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```
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public 10.231.0.0/24 + fd00:30::/64 mgmt 10.231.1.0/24 prod 10.231.2.0/24
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client .10 ────────────┬─ bastion .30 ───────────────────────────────┬─ (only via bastion)
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netbox-fsn .20 │ fsn1-pve1..3 .11-.13 (mgmt0) │ fsn1-pve1..3 .11-.13 (eth0)
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netbox-lab .21 │ lab-db1 .41, lab-web1 .42 │ web1 .21, web2 .22
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legacy-box .50 client .10 ───────┘
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v6-host fd00:30::60
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```
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| NetBox | Host | Kind | Primary IP | Other | Tags |
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|---|---|---|---|---|---|
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| fsn | `fsn1-pve1..3.hoster.test` | device, cluster `pve-fsn1` | eth0 = prod (needs bastion) | mgmt0 = mgmt (direct) | `pve` |
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| fsn | `bastion.hoster.test` | device | 10.231.0.30 | | `bastion` |
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| fsn | `v6-host` | device | fd00:30::60 (IPv6 only) | | `ipv6` |
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| fsn | `web1`, `web2` | VM, cluster `pve-fsn1` | prod (needs bastion) | | `web` |
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| lab | `lab-db1` | device | 10.231.1.41 | | `db` |
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| lab | `web1` | VM, cluster `lab-k8s` | 10.231.1.42 | | `web` |
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| — | `legacy-box` (10.231.0.50) | static host | | | |
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- **fsn** uses a v2 token (`nbt_…`), **lab** a legacy v1 token; both come from `.state/env`.
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- `web1` exists in both instances (ambiguity, `instance/host`).
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- Docker DNS resolves the `*.hoster.test` names on the mgmt network (`hostname` strategy).
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- Every target runs sshd on ports 22 and 2222 with users `ops` and `admin`, and an HTTP server on its own 127.0.0.1:8081 for tunnel tests ("hello from HOST").
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- NetBox UI: http://127.0.0.1:18000 (fsn), http://127.0.0.1:18001 (lab), login `admin` / `admin`.
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## Files
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| Path | Purpose |
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|---|---|
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| `compose.yaml` | All services and networks. |
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| `client.Dockerfile`, `client-entrypoint.sh` | Client image; builds netssh from the repository. |
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| `targets/` | SSH target image (sshd config, entrypoint). |
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| `seed/seed.py` | Fills both NetBox instances via the REST API (idempotent), writes `.state/`. |
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| `tests/run.sh`, `tests/lib.sh` | Test runner and helpers (`check`, `expect_out`, `expect_eq`, `expect_fail`, `wait_for`). |
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| `tests/NN-*.sh` | Test files; each runs in a fresh `HOME`. |
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| `tests/drive.py` | Drives `netssh configure` in huh's accessible mode. |
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| `.keys/`, `.state/` | Generated test key and seed output (git-ignored). |
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## Writing tests
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Each `tests/NN-name.sh` is sourced by `run.sh` in a subshell with a new
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`HOME`, `XDG_CONFIG_HOME`, and `XDG_CACHE_HOME`. Write the netssh config with
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`config <<'EOF' … EOF` (both NetBox instances plus your YAML) or `config_only`
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(no NetBox), then use the helpers:
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```sh
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config <<'EOF'
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ssh: {default_user: ops}
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EOF
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expect_eq "connect" "fsn1-pve1" netssh fsn/fsn1-pve1.hoster.test hostname
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expect_out "dry run" "-J ops@10.231.0.30" netssh --dry-run fsn/web1
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expect_fail "ambiguous" "found 2 exact matches" netssh web1
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```
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ssh always reads `/home/tester/.ssh/config` (OpenSSH ignores `$HOME`): it uses
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the test key, `BatchMode`, `StrictHostKeyChecking accept-new`, and
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`LogLevel ERROR`. Tests that need their own known_hosts set
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`ssh.options.UserKnownHostsFile`. The TUI test runs netssh inside tmux and
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reads the screen with `tmux capture-pane`.
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## Not covered
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- The installer (`install.sh`) downloads release assets from Gitea; it is tested by the Go tests with local fixtures.
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- macOS paths and behaviour.
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- `netssh uninstall` runs only with `--dry-run`, so the client keeps its binary.
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