Files
OpenShell/snapcraft.yaml
Oliver Calder 994750e3a1 feat(snap): vendor ssh in openshell snap and remove ssh-keys interface (#2280)
Previously, the openshell snap used the ssh-keys interface to get access
to the host's ssh binary, which is used for sandbox connect/exec/forward.
However, ssh-keys is a privileged interface which also grants access to
the public and private ssh keys on the host. As such, it required manual
connection in order to be used.

This weakened the security sandbox of the snap, and hurt the UX of
installing it.

This commit changes this by removing the `ssh-keys` interface and
instead vendoring the `ssh` binary within the snap.

This is safe because OpenShell always invokes the `ssh` binary with
`StrictHostKeyChecking=no`, `UserKnownHostsFile=/dev/null`, and
`GlobalKnownHostsFile=/dev/null`, and never uses any host credentials or
ssh configuration. Openshell only ever access to `~/.ssh/config` to
write OpenShell-managed aliases, and this can safely live within the
snap sandbox, rather than leaking into the host environment.

Signed-off-by: Oliver Calder <oliver.calder@canonical.com>
2026-07-15 03:05:33 +00:00

160 lines
5.4 KiB
YAML

# SPDX-FileCopyrightText: Copyright (c) 2025-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
name: openshell
title: OpenShell
adopt-info: openshell
summary: Safe, sandboxed runtimes for autonomous AI agents
description: |
OpenShell provides safe, sandboxed runtimes for autonomous AI agents.
It offers a CLI for managing gateways, sandboxes, and providers with
policy-enforced egress routing, credential proxying, and privacy-aware
LLM inference routing.
The OpenShell snap ships a CLI (`openshell`), a terminal UI
(`openshell.term`), and a managed gateway daemon (`openshell.gateway`).
**Setup instructions**
1. Install the Docker snap:
sudo snap install docker
Support for system-installed Docker is coming in snapd 2.76.
2. Connect the required interfaces and start the gateway:
sudo snap connect openshell:docker docker:docker-daemon
sudo snap connect openshell:log-observe
sudo snap connect openshell:system-observe
sudo snap start openshell.gateway
3. Verify the gateway and register it locally:
snap services openshell.gateway
openshell status
openshell gateway add http://127.0.0.1:17670 --local --name openshell-gateway
After a snap refresh, restart the gateway to pick up the new revision:
sudo snap restart openshell.gateway
Restarting the gateway will interrupt active sandbox sessions. The gateway
is not restarted automatically to avoid disconnecting running sandboxes.
base: core24
grade: stable
confinement: strict
license: Apache-2.0
website: https://docs.nvidia.com/openshell/latest/index.html
source-code: https://github.com/NVIDIA/OpenShell
issues: https://github.com/NVIDIA/OpenShell/issues
contact: https://github.com/NVIDIA/OpenShell/security/policy
platforms:
amd64:
build-on: [amd64]
build-for: [amd64]
arm64:
build-on: [arm64]
build-for: [arm64]
apps:
openshell:
command: bin/openshell
environment:
XDG_CONFIG_HOME: "$SNAP_USER_COMMON/.config"
XDG_DATA_HOME: "$SNAP_USER_COMMON/.local/share"
XDG_STATE_HOME: "$SNAP_USER_COMMON/.local/state"
plugs:
- home
- network
- system-observe
term:
command: bin/openshell term
desktop: meta/gui/term.desktop
environment:
XDG_CONFIG_HOME: "$SNAP_USER_COMMON/.config"
XDG_DATA_HOME: "$SNAP_USER_COMMON/.local/share"
XDG_STATE_HOME: "$SNAP_USER_COMMON/.local/state"
plugs:
- home
- network
- system-observe
gateway:
command: bin/openshell-gateway-wrapper
daemon: simple
# refresh-mode: endure prevents snapd from restarting the gateway daemon
# during snap refreshes, which would kill active sandbox sessions.
# Operators must manually restart the service after a refresh if needed.
refresh-mode: endure
# The wrapper sets OPENSHELL_DISABLE_TLS=true and OPENSHELL_DB_URL to
# use $SNAP_COMMON/gateway.db. If $SNAP_COMMON/gateway.toml exists it is
# passed to the gateway as --config, allowing operators to override
# settings without rebuilding the snap.
environment:
XDG_DATA_HOME: "$SNAP_COMMON"
XDG_RUNTIME_DIR: "$SNAP_COMMON"
plugs:
- docker
# Docker snap is required because the snap uses the docker:docker-daemon
# interface slot. It does not work with system-installed Docker.
- log-observe
- network
- network-bind
- system-observe
parts:
openshell:
plugin: nil
source: ./snap/prebuilt
override-pull: |
craftctl default
craftctl set version="$(cat "$CRAFT_PART_SRC/version")"
override-build: |
set -euo pipefail
MISSING=()
for bin in openshell openshell-gateway openshell-sandbox openshell-gateway-wrapper; do
if [ ! -f "$CRAFT_PART_SRC/$bin" ]; then
MISSING+=("$bin")
fi
done
if [ ${#MISSING[@]} -gt 0 ]; then
printf '%s\n' \
"ERROR: snap/prebuilt/ is incomplete:" \
"${MISSING[@]/#/' - '}" \
"" \
"The snap build directory must be populated by CI before snapcraft pack." \
>&2
exit 1
fi
install -D -m 0755 "$CRAFT_PART_SRC/openshell" \
"$CRAFT_PART_INSTALL/bin/openshell"
install -D -m 0755 "$CRAFT_PART_SRC/openshell-gateway" \
"$CRAFT_PART_INSTALL/bin/openshell-gateway"
install -D -m 0755 "$CRAFT_PART_SRC/openshell-sandbox" \
"$CRAFT_PART_INSTALL/bin/openshell-sandbox"
install -D -m 0755 "$CRAFT_PART_SRC/openshell-gateway-wrapper" \
"$CRAFT_PART_INSTALL/bin/openshell-gateway-wrapper"
install -D -m 0644 "$CRAFT_PART_SRC/meta/gui/term.desktop" \
"$CRAFT_PART_INSTALL/meta/gui/term.desktop"
install -D -m 0644 "$CRAFT_PART_SRC/meta/gui/icon.png" \
"$CRAFT_PART_INSTALL/meta/gui/icon.png"
install -D -m 0644 "$CRAFT_PART_SRC/LICENSE" \
"$CRAFT_PART_INSTALL/usr/share/doc/openshell/LICENSE"
install -D -m 0644 "$CRAFT_PART_SRC/README.md" \
"$CRAFT_PART_INSTALL/usr/share/doc/openshell/README.md"
ssh:
# Vendor the openssh-client `ssh` binary into the snap so the CLI/TUI
# can spawn `ssh` for sandbox connect/exec/forward without relying on
# the host's ssh-keys interface. The binary lands at
# $SNAP/usr/bin/ssh and is found via the snap runtime PATH.
plugin: nil
stage-packages:
- openssh-client
prime:
- usr/bin/ssh