7 Commits
Author SHA1 Message Date
Evan Lezar 78975ea220 chore(test-guest): remove snap reproduction helper (#4368)
Signed-off-by: Evan Lezar <elezar@nvidia.com>
2026-10-09 12:38:45 +00:00
Oliver Calder 82bc756545 feat(snap): run gateway as a user service by default (#4099)
* feat(snap): run gateway as a user service by default

Replace the existing system `gateway` service with separate
`user-gateway` and `system-gateway` services. For new installs, only the
`user-gateway` service is enabled. For existing installs, only the
`system-gateway` service is enabled.

Existing installs continue to have a one-time migration which removes
legacy insecure configurations. It is up to `install.sh` or users to
manually copy mTLS credentials from the root-owned `$SNAP_COMMON/tls` to
the invoking user's OpenShell snap directory. This is explained in the
snap description in `snapcraft.yaml`, visible in the Snap Store listing
and via `snap info openshell`.

Service enablement is now managed by a new snap configuration option
named `gateway-mode`, so users can switch from one mode to another via
e.g. `sudo snap set openshell gateway-mode=user`. The `install` and
`post-refresh` hooks select which service to start by setting this mode.
If the `gateway-mode` is already set, then we know the one-time
migration has already taken place.

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>

* fix(snap): simplify the snap gateway wrapper

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>

* fix(snap): use `snap start --user` when running as non-root

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>

* fix(snap): ensure install.sh waits for the correct docker daemon

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>

* feat(snap): document how to safely switch between gateway modes

New installs run the gateway as a user service by default, while
upgrades of existing installs from prior to the user gateway continue to
use the existing system gateway. The user and system gateway are
fundamentally different services and there is no way to migrate state
between them.

However, it may be desirable for a user to run the gateway as a system
service after a fresh install. To support this, this commit adds
documentation for how to safely transition from the user gateway mode to
the system gateway mode, and vice versa.

Also, clarifies when it is necessary to manually copy TLS credentials
from the system gateway state directory to the user's home directory:
when upgrading a pre-TLS snap installation, or when switching from user
to system gateway mode. When upgrading an existing install with an HTTPS
gateway running as a system service, copying credentials again is not
necessary.

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>

---------

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>
2026-10-09 11:39:08 +00:00
Oliver Calder 6e865df349 feat(snap): ship the standalone prover binary in the snap (#3717)
Signed-off-by: Oliver Calder <oliver.calder@canonical.com>
Signed-off-by: Evan Lezar <elezar@nvidia.com>
2026-10-02 11:51:56 +00:00
Drew Newberry a67567e583 fix(snap): require mTLS for the snap gateway (#3726)
* fix(snap): require mTLS for the snap gateway

Replace the installer opt-in with an authenticated snap gateway. The wrapper
no longer forces plaintext, so the gateway serves TLS from the bundle it
already generates in $SNAP_COMMON/tls. The install hook writes a config that
enables mTLS user auth instead of unauthenticated access, and a new
post-refresh hook migrates the exact legacy default on existing installs.

install.sh waits for the gateway, detects whether it serves TLS, copies the
client bundle into the target user's snap state directory, and registers the
gateway over HTTPS. Older plaintext snap revisions still register over HTTP
with a warning. The release canary asserts mTLS auth and HTTPS registration.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(snap): pass config preflight and detect the mTLS gateway reliably

An explicit [openshell.gateway.mtls_auth] table fails config preflight,
which validates mTLS auth before the local TLS bundle supplies the client
CA. Write a default that pins the Docker driver instead; with the wrapper's
TLS bundle the gateway requires client certificates and enables mTLS user
auth automatically, as the native packages do.

The mTLS gateway rejects TLS handshakes without a client certificate, and
it still answers plaintext loopback HTTP for sandbox service routing, so the
installer could misdetect it as a legacy plaintext gateway. Probe HTTPS with
the root-owned client bundle, and treat a gateway as legacy only when a
plaintext gRPC Health call succeeds.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* chore(snap): simplify install hook comment

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(snap): migrate insecure gateway configs on refresh

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(snap): simplify mTLS detection and config migration

Detect the mTLS snap from the installed revision's post-refresh hook instead
of probing plaintext gRPC, and drop the scheme global. Remove the installer's
pre-hook config fallback, which is dead now that every channel ships the
install hook and which wrote the insecure default. Give the install hook a
single write path with a simple backup name, and shorten the manual client
certificate steps.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(snap): stop keeping a copy of replaced insecure configs

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(install): make the snap an opt-in install method

Stop selecting the OpenShell snap just because the snap command exists. Linux
installs default to the Debian or RPM package; OPENSHELL_INSTALL_METHOD=snap
(or deb, rpm) selects the package explicitly. Hosts that already have the
OpenShell snap keep refreshing it rather than gaining a second gateway on the
same port. The release canary and snap repro script opt in explicitly.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(snap): let the gateway auto-detect its compute driver

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(snap): restart the gateway after refresh

Published revisions use refresh-mode: endure, and snapd honors the old
revision's setting during a refresh, so the plaintext gateway kept running
with the migrated config unused until a manual restart. Restart the gateway
from the post-refresh hook so the mTLS config takes effect immediately.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* docs(snap): drop refresh notes from the snap description

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* docs(snap): trim snap refresh notes from installation docs

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

---------

Signed-off-by: Drew Newberry <anewberry@nvidia.com>
2026-09-26 01:50:02 +00:00
Oliver Calder 6c864ec9ab fix(install): avoid installing incompatible docker snap (#3666)
* fix(install): avoid installing incompatible docker snap

The work to land RFC-0012 added new restrictions when interacting with
Docker by setting `NoNewPrivs`. This prevents the `docker` snap from
transitioning its AppArmor profile from `snap.docker.dockerd` to
`docker-default` when it tries to launch a container. Thus, the `docker`
snap is currently incompatible with OpenShell.

This commit prevents `install.sh` from installing the `docker` snap
before installing the `openshell` snap, and instead requires the user to
install a non-snap Docker daemon before proceeding with installing the
snap. Systems without the `snap` command are unaffected, since they
install native packages without checking for the presence of Docker or
other compute providers.

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>

* fix(snap): only snapd 2.76 for openshell snap since store installs work

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>

* fixup! fix(install): avoid installing incompatible docker snap

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>

* fixup! fix(snap): only snapd 2.76 for openshell snap since store installs work

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>

---------

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>
2026-09-24 19:46:00 +00:00
Oliver Calder e60098d748 fix(snap): install openshell snap via install.sh when snap available (#3656)
* fix(snap): update stale snap docs and tests

Previously, the `openshell` snap required the `docker` snap. Now, it
works with any Docker daemon running on the system. Furthermore, the
`snap-declaration` assertion on the `openshell` snap when installed from
the Snap Store causes the `openshell` snap to always connect to the
system `:docker` slot, rather than a slot provided by the `docker` snap.

This commit updates the documentation, including the `description` field in
`snapcraft.yaml`, to ensure that all information is correct and
up-to-date.

Additionally, some tests connected the `openshell:docker` plug to the
`docker` snap's `docker:docker-daemon` slot, which is inconsistent with
how the `openshell` snap operates when installed from the store. Update
those tests to connect to the system `:docker` slot as well.

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>

* fix(snap): require snapd 2.76 for openshell snap

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>

* fix(nix): align snap gateway reproducer timeout with release-canary

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>

* fix(snap): require snapd 2.77 for openshell snap

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>

* fixup! fix(snap): require snapd 2.77 for openshell snap

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>

* feat(snap): install openshell snap via install.sh when snap available

Change `install.sh` to install the `openshell` snap by default when
snapd is installed on the host. This installs the snap from the
`latest/stable` channel, which should match the most up-to-date release
tag on github.

If `OPENSHELL_VERSION=dev` is set for `install.sh`, then it will install
the `openshell` snap from the `latest/edge` channel, which matches the
latest dev release available on github.

The `openshell` snap currently requires Docker in order to function. If
a Docker daemon is already installed on the system, it will be used by
the `openshell` snap. Otherwise, `install.sh` will install the `docker`
snap first, wait for the Docker daemon to be ready, and then install the
`openshell` snap.

Also, update the `release-canary.yml` to split the `ubuntu-snap` job
into `ubuntu-snap-system-docker` and `ubuntu-snap-provisions-docker`,
which test the two aforementioned scenarios. Previously, `ubuntu-snap`
manually installed a given snap artifact as built from CI, but with
these new jobs, it instead uses `install.sh` to install the published
`openshell` snap from the `latest/edge` track, thus matching the
behavior of the other release canary jobs.

Make corresponding changes to the `nix` guest reproducer, documentation,
and tests.

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>

* fix(snap): configure local gateway authentication

The `openshell` snap runs the gateway as a systemd system service, which
runs as root. Thus, the mTLS certs are generated by root and stored in a
root-owned directory to which non-root users do not have access. For
this reason, the snap's `openshell-gateway-wrapper` script sets
`OPENSHELL_DISABLE_TLS=true`.

This commit ensures that the `openshell` snap's gateway allows
unauthenticated local access by writing a default `gateway.toml`
configuration file during the install hook, which runs after the snap is
first installed but before services are started. The config file
contains sets `allow_unauthenticated_users = true`.

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>

* fix(install): configure snap gateway authentication

Recently, a new install hook was added which writes a default config
file for the `openshell` snap to allow unauthenticated local access to
the gateway. This is because the gateway service runs as root and the
mTLS certificates are not accessible to non-root users.

However, the `install.sh` script installs the `openshell` snap from the
snap store, and the published version may not yet have that new install
hook. Or, the user may already have the snap installed, in which case
the install hook does not run. In either case, we need `install.sh` to
ensure that the config file is written to set the gateway auth to
`allow_unauthenticated_users = true`, and then restart the openshell
gateway service.

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>

* fixup! feat(snap): install openshell snap via install.sh when snap available

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>

---------

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>
2026-09-24 15:10:08 +00:00
Evan Lezar ca61ee3744 feat(test-guest): add snap lifecycle reproduction harness (#2865)
* feat(test-guest): add snap lifecycle reproduction harness

Signed-off-by: Evan Lezar <elezar@nvidia.com>

* fix(test-guest): preserve cache seal executability

Signed-off-by: Evan Lezar <elezar@nvidia.com>

---------

Signed-off-by: Evan Lezar <elezar@nvidia.com>
2026-08-27 13:56:38 +00:00