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restic-manager/web/templates/pages/add_host.html
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steve ee3ee241ea
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P1 polish: agent-as-root, init-repo flow, rest creds passthrough, UX fixes
Cohesive batch from a smoke-test session against a real rest-server.
Themed bullets:

* Agent runs as root, sandboxed via systemd. CapabilityBoundingSet
  drops to CAP_DAC_READ_SEARCH + restore caps; ProtectSystem=strict
  with ReadWritePaths confined to /etc + /var/lib/restic-manager;
  NoNewPrivileges blocks escalation. Install script no longer
  creates a service user. spec.md §4.2 / §14.1 / §14.3 explain the
  rationale (matches UrBackup / Veeam / Bareos defaults; trying to
  back up "everything" as an unprivileged user creates silent skips
  on /home, /root, /var/lib/* with no upside vs the threat model
  the agent already implies).

* Init-repo end-to-end. New JobKind="init" wired through agent
  runner, restic.Env.RunInit, server dispatcher, and a UI button
  (red "Initialise repo" in the run-now panel). hosts.repo_initialised_at
  flips on init success, on backup success, or on a non-empty
  snapshots.report. The "Run now" / "Init" / "Retry" branching now
  drives both the dashboard host row and the host-detail panel.
  Migrations 0004 (column), 0005 (jobs.kind CHECK widened — using
  the safe create-new-then-rename pattern; first version corrupted
  job_logs.job_id FK), 0006 (cleans up job_logs FK on already-
  affected DBs).

* rest-server creds embedded at exec time only. restic.Env gains
  RepoUsername; mergeRestCreds() builds the user:pass@-prefixed URL
  inside envSlice() and never assigns it back to the struct, so
  nothing slog-able ever sees the cleartext form. RedactURL helper
  for any future surface that needs to log a URL safely. Both
  helpers tested.

* Add-host UX. Repo password is now optional — server mints a
  24-byte URL-safe random one and surfaces it once, alongside an
  htpasswd snippet ("echo PASS | htpasswd -B -i ... USERNAME") so
  the operator pastes one command on the rest-server host and one
  on the endpoint. Result page also links the install snippet at
  /install/install.sh (was /install.sh — 404'd before) and pipes
  to bash (not sh — script uses set -o pipefail and other
  bashisms; on Debian/Ubuntu sh is dash).

* Late-subscriber race in JobHub. A fast-failing job could finish
  (DB write + Broadcast) before the browser's HX-Redirect → page
  load → WS-connect path completed, so the JS sat forever waiting
  on a job.finished that already passed. JobHub split into
  Register + Send + Run; handleJobStream now subscribes first,
  re-fetches the job, and sends a synthetic job.finished if the
  state is already terminal.

* HTMX error visibility. New toast partial listens to
  htmx:responseError and surfaces the response body as a
  bottom-right toast — every server-side validation error now
  becomes visible without per-handler JS wiring. Also handles
  custom rm:toast events for future server-pushed notifications
  via the HX-Trigger header. Themed via existing CSS vars.

* Dashboard rows are now whole-row clickable to host detail
  (CSS card-link pattern: absolute-positioned anchor + .row-action
  z-index restoration so the action button stays clickable).
  "View →" on a running job links to /jobs/<id> rather than
  /hosts/<id> since the row click already covers the host page.

* "Run first" / "Run first backup" → "Run now" everywhere for
  consistency.

* runbook (docs/e2e-smoke.md) updated — live-log streaming step
  now reflects P1-26; mentions the browser-driven Run-now flow.

* _diag/dump-creds — moved out of cmd/ so go build doesn't pick
  it up; .gitignore now excludes /_diag/ entirely.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-02 11:02:12 +01:00

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{{define "title"}}{{.Title}}{{end}}
{{define "content"}}
{{$page := .Page}}
<div class="max-w-[1280px] mx-auto px-8 pt-9 pb-24">
<div class="crumbs"><a href="/">Dashboard</a><span class="sep">/</span><span class="text-ink-mid">Add host</span></div>
{{if eq $page.Token ""}}
{{/* ============================================================
State A · form
============================================================ */}}
<h1 class="text-2xl font-medium tracking-[-0.012em] mt-2.5">Add a host</h1>
<p class="text-pretty text-ink-mute text-[13px] mt-1.5 max-w-[580px]">
Mints a one-time enrolment token (TTL 1 hour) and binds the repo
credentials to it. The token can only be used once — generate a fresh
one if it expires or you typed something wrong.
</p>
{{if $page.Error}}
<div class="mt-6 px-4 py-3 rounded-[5px] text-[13px]"
style="background: color-mix(in oklch, var(--bad), transparent 88%);
border: 1px solid color-mix(in oklch, var(--bad), transparent 70%);
color: oklch(0.85 0.10 25);">
{{$page.Error}}
</div>
{{end}}
<form method="post" action="/hosts/new" class="grid grid-cols-12 gap-8 mt-7">
<div class="col-span-7 panel rounded-[7px] px-8 py-7">
<h3 class="text-[13px] font-semibold uppercase tracking-[0.08em] text-ink-mute mb-4">Host</h3>
<div class="mb-5">
<label class="field-label" for="ah-name">Hostname</label>
<input id="ah-name" name="hostname" type="text" class="field mono" autofocus required value="{{$page.Hostname}}">
<div class="field-help">Becomes the hosts display name. Most operators use the boxs actual hostname so logs line up.</div>
</div>
<div class="mb-7">
<label class="field-label" for="ah-tags">Tags <span class="text-ink-fade font-normal">· optional, comma-separated</span></label>
<input id="ah-tags" name="tags" type="text" class="field mono" placeholder="prod, db" value="{{$page.Tags}}">
<div class="field-help">Free-form. Used for filtering and grouping on the dashboard.</div>
</div>
<h3 class="text-[13px] font-semibold uppercase tracking-[0.08em] text-ink-mute mb-4 pt-6 border-t border-line-soft">Default backup paths</h3>
<div class="mb-7">
<label class="field-label" for="ah-paths">Paths <span class="text-ink-fade font-normal">· one per line</span></label>
<textarea id="ah-paths" name="paths" rows="3" class="field mono"
style="resize: vertical;"
placeholder="/etc&#10;/home&#10;/var/lib/postgresql">{{$page.Paths}}</textarea>
<div class="field-help">
What <span class="mono text-ink-mid">restic backup</span> runs against when an operator hits “Run now”. Until schedules ship in Phase 2, this is the only source of paths for run-now jobs — leave it empty if youll dispatch via the JSON API instead.
</div>
</div>
<h3 class="text-[13px] font-semibold uppercase tracking-[0.08em] text-ink-mute mb-4 pt-6 border-t border-line-soft">Restic repository</h3>
<div class="mb-5">
<label class="field-label" for="ah-url">Repo URL</label>
<input id="ah-url" name="repo_url" type="text" class="field mono" required
placeholder="rest:https://restic.lab/host-name/"
value="{{$page.RepoURL}}">
<div class="field-help">Whatever <span class="mono text-ink-mid">restic -r</span> would accept. Most fleets terminate at a <span class="mono text-ink-mid">restic/rest-server</span>; <span class="mono text-ink-mid">s3:</span> and <span class="mono text-ink-mid">b2:</span> URLs work equally well.</div>
</div>
<div class="mb-5">
<label class="field-label" for="ah-user">Repo username <span class="text-ink-fade font-normal">· optional</span></label>
<input id="ah-user" name="repo_username" type="text" class="field mono" value="{{$page.RepoUsername}}">
<div class="field-help">For <span class="mono text-ink-mid">rest-server</span> with htpasswd, this is the per-host user.</div>
</div>
<div class="mb-7">
<label class="field-label" for="ah-pass">Repo password <span class="text-ink-fade font-normal">· optional — leave blank to generate</span></label>
<input id="ah-pass" name="repo_password" type="password" class="field">
<div class="field-help">Encrypted at rest using the servers AEAD key, pushed to the agent only over the authenticated WebSocket. Leave blank and well mint a 24-byte URL-safe random password and surface it once on the next page (alongside the <span class="mono text-ink-mid">htpasswd</span> snippet youll need to run on the rest-server).</div>
</div>
<div class="flex gap-2 pt-5 border-t border-line-soft">
<button type="submit" class="btn btn-primary btn-lg">Mint token &amp; show install command</button>
<a href="/" class="btn btn-lg">Cancel</a>
</div>
</div>
<aside class="col-span-5">
<div class="text-[11px] uppercase tracking-[0.1em] text-ink-fade mb-3">What happens next</div>
<ol class="list-none p-0 m-0 space-y-4">
<li class="relative pl-9">
<span class="absolute left-0 top-0 w-[22px] h-[22px] border border-line rounded-full text-[11px] leading-[20px] text-center text-ink-mute mono">1</span>
<div class="text-[13px] text-ink font-medium">You get a one-time install command</div>
<div class="text-[12px] text-ink-mute mt-1 leading-[1.55]">A <span class="mono text-ink-mid">curl … | sh</span> snippet with the server URL and a 1h token baked in.</div>
</li>
<li class="relative pl-9">
<span class="absolute left-0 top-0 w-[22px] h-[22px] border border-line rounded-full text-[11px] leading-[20px] text-center text-ink-mute mono">2</span>
<div class="text-[13px] text-ink font-medium">You run it on the box you want to back up</div>
<div class="text-[12px] text-ink-mute mt-1 leading-[1.55]">Installer creates a service user, drops the agent binary, registers a sandboxed systemd unit, and enrols.</div>
</li>
<li class="relative pl-9">
<span class="absolute left-0 top-0 w-[22px] h-[22px] border border-line rounded-full text-[11px] leading-[20px] text-center text-ink-mute mono">3</span>
<div class="text-[13px] text-ink font-medium">The host appears on the dashboard within seconds</div>
<div class="text-[12px] text-ink-mute mt-1 leading-[1.55]">Server pushes the encrypted repo creds over the WS on first <span class="mono text-ink-mid">hello</span>; agent decrypts and persists to <span class="mono text-ink-mid">secrets.enc</span>.</div>
</li>
<li class="relative pl-9">
<span class="absolute left-0 top-0 w-[22px] h-[22px] border border-line rounded-full text-[11px] leading-[20px] text-center text-ink-mute mono">4</span>
<div class="text-[13px] text-ink font-medium">You hit “Run backup now”</div>
<div class="text-[12px] text-ink-mute mt-1 leading-[1.55]">First snapshot lands in the repo. Subsequent ones run on whatever schedule you set (Phase 2).</div>
</li>
</ol>
<div class="mt-8 panel rounded-[6px] px-4 py-3.5">
<div class="text-[11px] uppercase tracking-[0.08em] font-semibold text-warn mb-1.5">Prerequisite</div>
<p class="text-pretty text-[12px] text-ink-mid leading-[1.55]">
<span class="mono text-ink">restic</span> ≥ 0.16 must already be installed on the target host. The agent does not install it for you — different distros, different package managers, too much surface area to maintain.
</p>
</div>
</aside>
</form>
{{else}}
{{/* ============================================================
State B · token minted
============================================================ */}}
<div class="flex items-center gap-3 mt-2.5">
<h1 class="text-2xl font-medium tracking-[-0.012em]">Token minted</h1>
<span class="mono text-[11px] px-2 py-0.5 rounded-[3px]"
style="background: color-mix(in oklch, var(--ok), transparent 88%);
color: var(--ok);
border: 1px solid color-mix(in oklch, var(--ok), transparent 70%);">
expires {{relTime $page.ExpiresAt}}
</span>
</div>
<p class="text-pretty text-ink-mute text-[13px] mt-1.5 max-w-[580px]">
Run the snippet below on the target box. The host will appear on the
dashboard within a few seconds of the agent connecting.
</p>
{{if and $page.RepoUsername $page.RepoPassword}}
<div class="snippet mt-6 panel" style="border-color: color-mix(in oklch, var(--warn), transparent 60%);">
<div class="snippet-head" style="background: color-mix(in oklch, var(--warn), transparent 92%);">
<span>
Run on the rest-server box first
{{if $page.PasswordGenerated}}
<span class="mono text-[10.5px] px-1.5 py-0.5 ml-2 rounded-[3px]"
style="background: color-mix(in oklch, var(--ok), transparent 88%); color: var(--ok); border: 1px solid color-mix(in oklch, var(--ok), transparent 70%);">password generated</span>
{{end}}
<span class="text-ink-fade ml-2">· this is the only time youll see the password</span>
</span>
<div class="flex gap-2">
<button type="button" class="btn"
data-snippet="echo '{{$page.RepoPassword}}' | sudo htpasswd -B -i /path/to/htpasswd {{$page.RepoUsername}}"
onclick="navigator.clipboard.writeText(this.dataset.snippet); this.textContent='Copied'; setTimeout(()=>this.textContent='Copy', 2000);">Copy</button>
</div>
</div>
<pre>echo '<span class="var">{{$page.RepoPassword}}</span>' | sudo htpasswd -B -i <span class="var">/path/to/htpasswd</span> <span class="var">{{$page.RepoUsername}}</span></pre>
<div class="px-4 pt-1 pb-3 text-[12px] text-ink-mute leading-[1.55]">
Replace <span class="mono text-ink-mid">/path/to/htpasswd</span> with whatever your <span class="mono text-ink-mid">restic/rest-server</span> reads (typically the file passed via <span class="mono text-ink-mid">--htpasswd-file</span>, or <span class="mono text-ink-mid">/data/.htpasswd</span> in the official Docker image). The <span class="mono text-ink-mid">-i</span> flag reads the password from stdin so it never appears in your shells process list. Then either send <span class="mono text-ink-mid">SIGHUP</span> to the rest-server process or restart the container to pick up the new entry.
</div>
</div>
{{end}}
<div class="snippet mt-4 panel">
<div class="snippet-head">
<span>Install command · paste-and-run on the host youre backing up</span>
<div class="flex gap-2">
<button type="button" class="btn"
data-snippet="curl -fsSL {{$page.ServerURL}}/install/install.sh | sudo RM_SERVER={{$page.ServerURL}} RM_TOKEN={{$page.Token}} bash"
onclick="navigator.clipboard.writeText(this.dataset.snippet); this.textContent='Copied'; setTimeout(()=>this.textContent='Copy', 2000);">Copy</button>
</div>
</div>
<pre>curl -fsSL <span class="var">{{$page.ServerURL}}/install/install.sh</span> | sudo \
RM_SERVER=<span class="var">{{$page.ServerURL}}</span> \
RM_TOKEN=<span class="var">{{$page.Token}}</span> bash</pre>
</div>
<div class="grid grid-cols-12 gap-6 mt-7">
<div class="col-span-7 panel rounded-[7px] px-7 py-6">
<div class="text-[11px] uppercase tracking-[0.1em] text-ink-fade mb-3">Awaiting agent connection</div>
<div class="flex items-center gap-3">
<span class="dot dot-offline pulse"></span>
<span class="mono text-[14px] text-ink">{{if $page.Hostname}}{{$page.Hostname}}{{else}}new host{{end}}</span>
<span class="text-[12px] text-ink-mute">— enrolment will mark this online</span>
</div>
<div class="mt-4 px-3 py-2.5 rounded-[5px] mono text-[11.5px] text-ink-mute leading-[1.7]"
style="background: var(--bg); border: 1px solid var(--line-soft);">
<div>{{$page.ExpiresAt.Format "15:04:05.000"}} <span class="text-ink-mid">server</span> token minted · 1h ttl</div>
<div class="text-ink-fade"> awaiting POST /api/agents/enroll …</div>
</div>
</div>
<aside class="col-span-5">
<div class="text-[11px] uppercase tracking-[0.1em] text-ink-fade mb-3">If the agent doesnt appear</div>
<ul class="list-none p-0 m-0 text-[13px] text-ink-mid leading-[1.55]">
<li class="py-2 border-b border-line-soft text-pretty">Check the box can reach <span class="mono text-ink">{{$page.ServerURL}}</span> over HTTPS.</li>
<li class="py-2 border-b border-line-soft text-pretty">Check <span class="mono text-ink">restic --version</span> ≥ 0.16 — the installer wont bail on this, but backups will fail.</li>
<li class="py-2 border-b border-line-soft text-pretty">Check <span class="mono text-ink">journalctl -u restic-manager-agent -n 50</span> on the target box.</li>
<li class="py-2 text-pretty">Token expired? <a href="/hosts/new" class="underline underline-offset-4 decoration-line">Mint a new one</a> — theyre cheap.</li>
</ul>
</aside>
</div>
<div class="mt-7 flex gap-2">
<a href="/" class="btn btn-lg">← Back to dashboard</a>
<a href="/hosts/new" class="btn btn-lg">Add another host</a>
</div>
{{end}}
</div>
{{end}}