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Wire SANDCASTLE_CONTAINER_UID/GID env vars through to SandboxRunner #108

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Merged
lsfera merged 1 commit into from
Jul 6, 2026
Merged

Wire SANDCASTLE_CONTAINER_UID/GID env vars through to SandboxRunner #108

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12 changes: 12 additions & 0 deletions .sandcastle/main.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,10 @@
* AGENTIC_BASE_BRANCH PR base branch (default: main)
* AGENTIC_MODEL claudeCode model (default: claude-sonnet-4-6)
* SANDCASTLE_IMAGE inner image (default: sandcastle:local)
* SANDCASTLE_CONTAINER_UID inner image's non-root UID (default: 1000, sandcastle's
* own default — only needed when a custom image renames its
* user to a different UID, e.g. the dotnet SDK base's 1654)
* SANDCASTLE_CONTAINER_GID matching GID (default: 1000)
* AGENTIC_CONCURRENCY max parallel sandboxes (default: 1, serial)
* SMEE_URL smee.io channel URL (enables event-driven mode)
* WEBHOOK_SECRET shared HMAC secret for X-Hub-Signature-256 validation
Expand Down Expand Up @@ -603,6 +607,12 @@ async function main(): Promise<void> {

const issues = new IssueSource(repo);
const tier = (process.env.AGENTIC_TIER ?? "claude") as "claude" | "local";
const containerUid = process.env.SANDCASTLE_CONTAINER_UID
? Number(process.env.SANDCASTLE_CONTAINER_UID)
: undefined;
const containerGid = process.env.SANDCASTLE_CONTAINER_GID
? Number(process.env.SANDCASTLE_CONTAINER_GID)
: undefined;
const runner = new SandboxRunner({
imageName: process.env.SANDCASTLE_IMAGE,
model: process.env.AGENTIC_MODEL,
Expand All @@ -611,6 +621,8 @@ async function main(): Promise<void> {
localImageName: process.env.SANDCASTLE_OPENCODE_IMAGE,
cwd: repoRoot,
network,
containerUid,
containerGid,
});

const reviewer = new ReviewerAdapter({
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6 changes: 6 additions & 0 deletions examples/dotnet-project/orchestrator.env
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Expand Up @@ -10,6 +10,12 @@ GH_TOKEN=
# docker build -f .sandcastle/Dockerfile.dotnet -t sandcastle-dotnet:local .sandcastle
SANDCASTLE_IMAGE=sandcastle-dotnet:local

# mcr.microsoft.com/dotnet/sdk:8.0 ships its own non-root user at uid/gid 1654
# (not sandcastle's default of 1000) — Dockerfile.dotnet renames it but keeps
# the id, so the runner must be told to expect 1654 instead of assuming 1000.
SANDCASTLE_CONTAINER_UID=1654
SANDCASTLE_CONTAINER_GID=1654

# Target repo is NOT the one `gh` detects from the working directory here —
# this recipe validates against a small, purpose-built dotnet fixture repo,
# so AGENTIC_REPO is set explicitly rather than left to the default.
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