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Add per-project scope option and fix interactive sudo prompt #10

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5d94962
fix: use non-interactive sudo to prevent password prompts
peter-wagstaff Feb 24, 2026
48167fb
feat: add per-project scope option for volume isolation
peter-wagstaff Feb 24, 2026
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21 changes: 21 additions & 0 deletions src/agent-persistence/README.md
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Expand Up @@ -17,12 +17,33 @@ Persist configurations for coding agents (Claude Code, Codex, Gemini Code Assist

| Options Id | Description | Type | Default Value |
|-----|-----|-----|-----|
| scope | Volume scope: `shared` uses one volume across all containers, `per-project` isolates data per dev container within the volume. | string | shared |
| claude | Mount Claude Code config (`~/.claude`) via volume. | boolean | true |
| codex | Mount Codex config (`~/.codex`) via volume. | boolean | true |
| gemini | Mount Gemini Code Assist config (`~/.gemini`) and caches (`~/.cache/google-vscode-extension`, `~/.cache/cloud-code`) via volumes. | boolean | true |
| github-cli | Mount GitHub CLI config (`~/.config/gh`) via volume. | boolean | true |

## Per-project scope

By default, all dev containers share a single persistence volume. With `"scope": "per-project"`, each dev container gets an isolated subdirectory within the volume, so credentials and configuration don't leak between projects.

```json
"features": {
"ghcr.io/fjktkm/devcontainer-features/agent-persistence:1": {
"scope": "per-project"
}
}
```

**Required:** When using `per-project` scope, you must also add `DEVCONTAINER_ID` to your `containerEnv` in `devcontainer.json`. This is needed because `${devcontainerId}` substitution is not supported inside feature metadata's `containerEnv`:

```json
"containerEnv": {
"DEVCONTAINER_ID": "${devcontainerId}"
}
```

Without this, the feature falls back to shared scope.

---

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8 changes: 7 additions & 1 deletion src/agent-persistence/devcontainer-feature.json
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@@ -1,6 +1,6 @@
{
"id": "agent-persistence",
"version": "1.3.1",
"version": "1.4.0",
"name": "Agent Persistence",
"description": "Persist configurations for coding agents (Claude Code, Codex, Gemini Code Assist) and tools they commonly use (GitHub CLI) across dev container rebuilds using Docker volumes",
"documentationURL": "https://github.com/fjktkm/devcontainer-features/tree/main/src/agent-persistence",
Expand All @@ -14,6 +14,12 @@
"coding-agent"
],
"options": {
"scope": {
"type": "string",
"enum": ["shared", "per-project"],
"default": "shared",
"description": "Volume scope: 'shared' uses one volume across all containers (default), 'per-project' isolates data per dev container within the volume."
},
"claude": {
"type": "boolean",
"default": true,
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1 change: 1 addition & 0 deletions src/agent-persistence/install.sh
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Expand Up @@ -18,6 +18,7 @@ chmod +x "${INSTALL_DIR}/oncreate.sh"
chmod +x "${INSTALL_DIR}/poststart.sh"

cat > "${INSTALL_DIR}/env" <<EOF
export SCOPE="${SCOPE:-shared}"
export CLAUDE="${CLAUDE:-true}"
export CODEX="${CODEX:-true}"
export GEMINI="${GEMINI:-true}"
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8 changes: 6 additions & 2 deletions src/agent-persistence/oncreate.sh
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Expand Up @@ -3,12 +3,16 @@
set -e

VOLUME_ROOT="/mnt/agent-persistence"
if [ -e "${VOLUME_ROOT}" ]; then
if [ "$SCOPE" = "per-project" ] && [ -n "$DEVCONTAINER_ID" ]; then
VOLUME_ROOT="/mnt/agent-persistence/$DEVCONTAINER_ID"
fi
if [ -e "${VOLUME_ROOT}" ] || [ "$SCOPE" = "per-project" ]; then
mkdir -p "${VOLUME_ROOT}"
TARGET_USER="$(id -un)"
TARGET_GROUP="$(id -gn)"
RUN_AS_ROOT=""
if [ "$(id -u)" -ne 0 ]; then
command -v sudo >/dev/null 2>&1 && RUN_AS_ROOT="sudo"
command -v sudo >/dev/null 2>&1 && RUN_AS_ROOT="sudo -n"
fi
if [ -n "${RUN_AS_ROOT}" ] || [ "$(id -u)" -eq 0 ]; then
${RUN_AS_ROOT} chown -R "${TARGET_USER}:${TARGET_GROUP}" "${VOLUME_ROOT}" 2>/dev/null || true
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5 changes: 4 additions & 1 deletion src/agent-persistence/poststart.sh
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Expand Up @@ -3,12 +3,15 @@
set -e

VOLUME_ROOT="/mnt/agent-persistence"
if [ "$SCOPE" = "per-project" ] && [ -n "$DEVCONTAINER_ID" ]; then
VOLUME_ROOT="/mnt/agent-persistence/$DEVCONTAINER_ID"
fi
if [ -e "${VOLUME_ROOT}" ]; then
TARGET_USER="$(id -un)"
TARGET_GROUP="$(id -gn)"
RUN_AS_ROOT=""
if [ "$(id -u)" -ne 0 ]; then
command -v sudo >/dev/null 2>&1 && RUN_AS_ROOT="sudo"
command -v sudo >/dev/null 2>&1 && RUN_AS_ROOT="sudo -n"
fi
if [ -n "${RUN_AS_ROOT}" ] || [ "$(id -u)" -eq 0 ]; then
${RUN_AS_ROOT} chown -R "${TARGET_USER}:${TARGET_GROUP}" "${VOLUME_ROOT}" 2>/dev/null || true
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