Raspberry Pi OS does not enable swap accounting in cgroups by default,
so the memory.swap.max cgroup v2 file does not exist. Setting --memory
without --memory-swap causes runc to write a swap limit to that file,
which fails with ENOENT.
Adding --memory-swap=-1 tells runc to leave swap unlimited, skipping
the memory.swap.max write entirely.
https://claude.ai/code/session_01FKCW3FDjNFj6jve4niMFXH
build.sh calls `podman build` inside the server container.
DOCKER_HOST is a Docker CLI variable; Podman does not use it to
automatically switch to remote mode. Without CONTAINER_HOST set,
Podman runs locally inside the (unprivileged) container, has no
user-namespace support, and lchown fails for any layer file owned
by a non-zero GID (e.g. gid=42 for /etc/shadow).
Setting CONTAINER_HOST=tcp://podman-proxy:2375 makes Podman
automatically operate in remote mode and delegate all operations
to the host Podman service, which has the correct subuid/subgid
mappings and full user-namespace support.
https://claude.ai/code/session_01FKCW3FDjNFj6jve4niMFXH
Two root causes for "invalid argument" when chowning non-root UIDs/GIDs
in image layers:
1. Missing uidmap package: without setuid newuidmap/newgidmap binaries,
Podman can only map a single UID (0 → current user) in the user
namespace. Any layer file owned by gid=42 (shadow) or similar then
has no mapping and lchown returns EINVAL. Now install uidmap if absent.
2. Stale Podman service: a service started before subuid/subgid entries
existed silently keeps the single-UID mapping for its lifetime even
after the entries are added and podman system migrate is run. Now
always kill and restart the service on each start.sh run so it always
reads the current subuid/subgid configuration.
https://claude.ai/code/session_01FKCW3FDjNFj6jve4niMFXH
If entries already existed before this script first ran, _HIY_SUBID_CHANGED
stayed 0 and migrate was skipped, leaving Podman storage out of sync with
the namespace mappings and causing lchown errors on layer extraction.
https://claude.ai/code/session_01FKCW3FDjNFj6jve4niMFXH
Without entries in /etc/subuid and /etc/subgid, Podman cannot map the
UIDs/GIDs present in image layers (e.g. gid 42 for /etc/shadow) into
the user namespace, causing 'lchown: invalid argument' on layer extraction.
Add a 65536-ID range starting at 100000 for the current user if missing,
then run podman system migrate so existing storage is updated.
https://claude.ai/code/session_01FKCW3FDjNFj6jve4niMFXH
The Dockerfile only needs Cargo.toml, Cargo.lock, and server/src/.
Excluding target/ (Rust artifacts), builder/, docs/, infra/, proxy/,
and .git/ means the daemon receives virtually nothing instead of 1.8 GB.
https://claude.ai/code/session_01FKCW3FDjNFj6jve4niMFXH
Rootless processes cannot bind privileged ports (<1024) by default.
Lower net.ipv4.ip_unprivileged_port_start to 80 at startup, and persist
it to /etc/sysctl.conf so the setting survives reboots.
https://claude.ai/code/session_01FKCW3FDjNFj6jve4niMFXH
Podman rootless unconditionally resets XDG_RUNTIME_DIR to /run/user/<uid>
if that directory exists, overriding any env var we set. Redirecting to
/tmp is therefore ineffective.
Instead, ensure /run/user/<uid> exists and is owned by the current user
(using sudo if needed), mirroring what PAM/logind does for login sessions.
All Podman runtime state (socket, events, netavark) then works correctly.
Remove the now-unnecessary storage.conf/containers.conf writes and the
inline env override on podman system service.
https://claude.ai/code/session_01FKCW3FDjNFj6jve4niMFXH
make build was looking for Makefile in cwd (repo root) instead of infra/.
Use -C "$SCRIPT_DIR" so it always finds infra/Makefile regardless of where
the script is invoked from.
Add -f flag to podman compose up so it finds infra/docker-compose.yml
from any working directory.
https://claude.ai/code/session_01FKCW3FDjNFj6jve4niMFXH
Podman's events engine reads tmp_dir from containers.conf, not from
XDG_RUNTIME_DIR directly. Write both storage.conf and containers.conf
to /tmp/podman-<uid> so no path under /run/user/<uid> is ever used.
Also use `env XDG_RUNTIME_DIR=...` prefix on podman invocation to
override any stale value in the calling shell environment.
https://claude.ai/code/session_01FKCW3FDjNFj6jve4niMFXH
Stop relying on conditional checks. Always point XDG_RUNTIME_DIR and
storage.conf runroot to /tmp/podman-<uid> so Podman never touches
/run/user/<uid>, which requires PAM/logind to create.
https://claude.ai/code/session_01FKCW3FDjNFj6jve4niMFXH
SSH sessions may export XDG_RUNTIME_DIR=/run/user/<uid> even when that
directory doesn't exist or isn't writable. Check writability rather than
emptiness before falling back to /tmp/podman-<uid>.
https://claude.ai/code/session_01FKCW3FDjNFj6jve4niMFXH
Podman uses XDG_RUNTIME_DIR for its RunRoot, events dirs, and default
socket path. Without it pointing to a writable location, podman fails
with 'mkdir /run/user/<uid>: permission denied' even before the socket
is created. Export it to /tmp/podman-<uid> when unset.
https://claude.ai/code/session_01FKCW3FDjNFj6jve4niMFXH
/run/user/<uid> is created by PAM/logind and doesn't exist in non-login
shells. Fall back to /tmp/podman-<uid> when XDG_RUNTIME_DIR is unset so
mkdir always succeeds.
https://claude.ai/code/session_01FKCW3FDjNFj6jve4niMFXH
systemctl --user fails in non-interactive shells (no D-Bus session bus).
podman system service starts the socket directly without systemd/D-Bus,
backgrounding the process and waiting up to 5 s for the socket to appear.
https://claude.ai/code/session_01FKCW3FDjNFj6jve4niMFXH
start.sh now activates the Podman user socket via systemctl --user if it
isn't running yet, then exports DOCKER_HOST and PODMAN_SOCK so that
podman compose (which delegates to the docker-compose plugin) can connect.
docker-compose.yml mounts ${PODMAN_SOCK} into the socat proxy container
at a fixed internal path (/podman.sock), so it works for both rootful
(/run/podman/podman.sock) and rootless (/run/user/<UID>/podman/podman.sock)
without hardcoding the UID.
https://claude.ai/code/session_01FKCW3FDjNFj6jve4niMFXH
Control plane:
- Users and app grants stored in SQLite (users + user_apps tables)
- bcrypt password hashing
- Sessions: HashMap<token, user_id> (in-memory, cleared on restart)
- Bootstrap: first admin auto-created from HIY_ADMIN_USER/HIY_ADMIN_PASS if DB is empty
- /admin/users page: create/delete users, toggle admin, grant/revoke app access
- /api/users + /api/users/:id/apps/:app_id REST endpoints (admin-only)
Deployed apps:
- Every app route now uses Caddy forward_auth pointing at /auth/verify
- /auth/verify checks session cookie + user_apps grant (admins have access to all apps)
- Unauthenticated -> 302 to /login?next=<original URL>
- Authorised but not granted -> /denied page
- Session cookie set with Domain=.DOMAIN_SUFFIX for cross-subdomain auth
Other:
- /denied page for "logged in but not granted" case
- Login page skips re-auth if already logged in
- Cookie uses SameSite=Lax (required for cross-subdomain redirect flows)
https://claude.ai/code/session_01FKCW3FDjNFj6jve4niMFXH
- New HIY_ADMIN_USER / HIY_ADMIN_PASS env vars control access
- Login page at /login with redirect-after-login support
- Cookie-based sessions (HttpOnly, SameSite=Strict); cleared on restart
- Auth middleware applied to all routes except /webhook/:app_id (HMAC) and /login
- Auth is skipped when credentials are not configured (dev mode, warns at startup)
- Logout link in both dashboard nav bars
- Caddy admin port 2019 no longer published to the host in docker-compose
https://claude.ai/code/session_01FKCW3FDjNFj6jve4niMFXH
Caddy's Caddyfile adapter names servers 'srv0' (not 'hiy'), so
PATCHing /config/apps/http/servers/hiy/routes was a no-op. Now we
query /config/apps/http/servers/ to find the actual server name
before updating routes.
https://claude.ai/code/session_01FKCW3FDjNFj6jve4niMFXH
Without a fallback, an unset DOMAIN_SUFFIX expands to an empty string,
making Caddy parse the site block as a second global options block and
fail to start. Using {:localhost} defaults to localhost.
Using compose-level ${DOMAIN_SUFFIX} substitution only works when docker
compose is run from the same directory as the .env file. env_file loads
the file relative to the compose file, so it works regardless of CWD.
Caddy's email directive requires a non-empty argument. Since ACME_EMAIL
wasn't set, Caddy failed to parse the config. Email is optional for
Let's Encrypt — remove the directive entirely and document it as a
manual opt-in comment.
Caddy's built-in ACME support handles TLS automatically — no CF_API_TOKEN,
no Cloudflare account, no DNS plugin needed. Requires ports 80+443 forwarded
to the Pi and ACME_EMAIL set in infra/.env.
Use printf instead of heredoc for cargo config — heredoc inside a
conditional RUN block confuses Docker's parser (fi becomes an unknown
instruction). The config is always written; unused linker entries are
harmless on native builds.
gcc-aarch64-linux-gnu is an x86→arm64 cross-compiler; it doesn't exist
on arm64 hosts (like the Pi). Only install cross-toolchains and set cargo
linker config when BUILDPLATFORM != TARGETPLATFORM.
start.sh now generates proxy/caddy.json at launch time with Let's Encrypt
automatic HTTPS (HTTP-01 or TLS-ALPN-01 challenge — no Cloudflare needed).
Reads DOMAIN_SUFFIX and ACME_EMAIL from infra/.env before starting.
Added infra/.env.example to document required vars.
start.sh builds via 'make build' (platform auto-detected) then starts
services detached with 'docker compose up -d'.
Makefile gains build/build-<platform> targets that build images without
starting, mirroring the existing up/<platform> targets.
Remove hardcoded platform from compose file so plain 'make up' (or
'docker compose up --build') always builds natively for the host.
Explicit targets (up-arm64, up-armv7, etc.) set DOCKER_DEFAULT_PLATFORM.
Dockerfile now uses BuildKit TARGETARCH/TARGETVARIANT to pick the Rust
cross-compilation target automatically. The build stage always runs on
the host platform for speed.
Makefile provides named targets:
make up-amd64 # Mac Intel / Linux desktop
make up-arm64 # Mac M1/M2/M3, Pi 4/5 (64-bit OS)
make up-armv7 # Pi 2/3/4 (32-bit OS)
make up-armv6 # Pi Zero / Pi 1
Dashboard now shows:
- System card at top: CPU 1-min load average, RAM used/total, disk used/total
(reads /proc/loadavg, /proc/meminfo, df -k /)
- Two status columns in the apps table:
- "Container" — actual Docker runtime state (running/exited/restarting/not deployed)
via `docker inspect` on each app's hiy-{id} container
- "Last Deploy" — build pipeline status (queued/building/success/failed)
- Auto-refresh now calls /api/status every 5 s and updates both columns
(fixes the previous broken refresh that used app.status which didn't exist)
New API endpoint: GET /api/status → {app_id: {deploy, container}} for all apps
https://claude.ai/code/session_01FKCW3FDjNFj6jve4niMFXH
- app_detail now redirects to / instead of 404 when app is not found
(handles case where app was removed while user was on the detail page)
- Add a "← Dashboard" button in the log panel that appears once a
deployment finishes (both success and failed), giving the user a clear
path back to the main screen
https://claude.ai/code/session_01FKCW3FDjNFj6jve4niMFXH
Apps follow the Heroku convention of binding to $PORT at runtime.
Without --env PORT=$PORT, containers use their default port which
doesn't match what Caddy is configured to dial, causing 502s.
