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home-network-k3s-impl/bootstrap/flux/bootstrap.sh
T
jakman85andClaude Opus 4.8 84a2d762f0 Phase 1 (author-only): Flux + SOPS bootstrap + interface wiring (T-1.4)
bootstrap/sops (age-keygen refusing in-repo, .sops.yaml, install-age-key.sh
glue installing the sops-age Secret) + bootstrap/flux (bootstrap.sh: flux
install -> apply -k clusters/dev; decryption/url patches). PM wiring: place
.sops.yaml at repo root (SOPS walks to root); inline the 3 flux patches into
clusters/dev (avoids kustomize ../ load-restriction). clusters/dev builds with
decryption enabled; full CI gate PASS. No key material; nothing executed.

Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
2026-08-16 01:21:01 -05:00

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#!/usr/bin/env bash
#
# bootstrap.sh — the SINGLE Flux + SOPS bootstrap entrypoint for the dev cluster.
#
# Phase 1, T-1.4 · ADR-0004 (Flux) · ADR-0007 (SOPS+age) · R-GITOPS-01 · R-SEC-01.
# =============================================================================
# *** AUTHORED, NOT RUN. The Infra worker's FINAL Ansible play invokes this ***
# *** (interface contract, see ../README.md). Agents must not execute it. ***
# =============================================================================
#
# WHAT THIS DOES (Phase 1, bootstrap-source method — reconciles from the LOCAL repo, no remote
# git host exists yet per spec docs/05 + CONTRIBUTING.md):
#
# 1. `flux install` — deploy the Flux controllers ONLY (source, kustomize, helm controllers).
# We do NOT use `flux bootstrap git` in Phase 1 because that command commits
# and OWNS its own gotk-sync GitRepository+Kustomization named `flux-system`.
# Our entrypoints are ALREADY authored in clusters/base (flux-system.yaml =
# the GitRepository; platform.yaml/apps.yaml = the Kustomizations). Letting
# bootstrap regenerate them would DUPLICATE/conflict. `flux install` +
# applying the authored clusters/dev overlay is the reconciling path.
# 2. sops-age Secret — the operator installs the age PRIVATE key out-of-band BEFORE reconcile so
# decryption works on first pass (../sops/age-key-secret.md). This script
# only VERIFIES it exists; it never handles key material.
# 3. `kubectl apply -k clusters/dev` — materialises the authored reconciliation graph:
# GitRepository `flux-system` (source) -> Kustomization `platform` ->
# Kustomization `apps` (dependsOn platform), with cluster-vars overlay
# (R-ENV-02) and SOPS decryption enabled via the patches in ./patches/.
#
# PREREQUISITES the operator/PM resolves before this runs (see ../README.md "Handoff"):
# - clusters/base/flux-system.yaml url placeholder is overridden — wire ./patches/flux-system-
# source-url.yaml into clusters/dev/kustomization.yaml (or set the URL) so the source is real.
# - ./patches/platform-sops-decryption.yaml + apps-sops-decryption.yaml are wired into
# clusters/dev/kustomization.yaml `patches:` so decryption is enabled at reconcile.
# - .sops.yaml (from ../sops) is installed at the repo root with the real age recipient.
#
# PHASE 6 (WS-GITOPS, later — NOT Phase 1): once Gitea is up, cut the source over with
# `flux bootstrap git` against gitea.home.keithjackson.dev — see ../README.md "Phase-6 cutover".
#
set -euo pipefail
# --- config (env-overridable) ------------------------------------------------
FLUX_ENV_PATH="${FLUX_ENV_PATH:-clusters/dev}" # dev is the ONLY Phase-1 build target
FLUX_NAMESPACE="${FLUX_NAMESPACE:-flux-system}"
SOPS_SECRET_NAME="${SOPS_SECRET_NAME:-sops-age}"
script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
repo_root="$(git -C "${script_dir}" rev-parse --show-toplevel 2>/dev/null || cd "${script_dir}/../.." && pwd)"
echo "==> Flux + SOPS bootstrap (dev) — path=${FLUX_ENV_PATH}"
# --- 0. tooling present (from infra/devcontainer; versions pinned there) ------
for bin in flux kubectl; do
command -v "$bin" >/dev/null 2>&1 || { echo "ERROR: '$bin' not found (use infra/devcontainer)." >&2; exit 1; }
done
# --- 1. install Flux controllers ---------------------------------------------
echo "==> [1/3] flux install (controllers only)"
flux install --namespace="${FLUX_NAMESPACE}"
# --- 2. verify the out-of-band age key Secret exists -------------------------
# We DO NOT create it here (it holds the private key). The operator installs it per
# ../sops/age-key-secret.md. Fail fast if missing so decryption can't silently no-op.
echo "==> [2/3] verifying ${SOPS_SECRET_NAME} Secret exists in ${FLUX_NAMESPACE}"
if ! kubectl -n "${FLUX_NAMESPACE}" get secret "${SOPS_SECRET_NAME}" >/dev/null 2>&1; then
echo "ERROR: Secret ${FLUX_NAMESPACE}/${SOPS_SECRET_NAME} not found." >&2
echo " Install the age private key first: bootstrap/sops/age-key-secret.md" >&2
exit 1
fi
# --- 3. apply the authored dev entrypoint ------------------------------------
echo "==> [3/3] kubectl apply -k ${FLUX_ENV_PATH}"
kubectl apply -k "${repo_root}/${FLUX_ENV_PATH}"
echo
echo "==> Bootstrap applied. Watch reconciliation with (read-only):"
echo " flux get kustomizations --watch"
echo " flux get sources git -n ${FLUX_NAMESPACE}"
echo " 'platform' should go Ready, then 'apps' (dependsOn platform)."