fix(bootstrap): carry the operator's [archive] keys across re-runs too

Same class as 765a892, same table-level amnesia: [archive] retention /
warn_before / max_local_bytes are the reaper's runtime knobs (read from the
config Secret at job time; built-ins 90d / 3d,1d / no cap), and write_felis_toml
rewrote the whole table as store+local_path on every re-run. An operator who
narrowed the retention window silently got the 90d built-in back.

persisted_archive_block carries the three keys forward; store and local_path
stay installer-owned (FELIS_ARCHIVE_LOCAL_PATH must equal the mount the render
passes). Extends the bootstrap_test carry case with the archive keys and the
installer-owned exclusion.

deploy/bootstrap.sh

@@ -2129,6 +2129,29 @@ persisted_auth_source_blocks() {
     'url = "https://littleskin.cn/api/yggdrasil/sessionserver/session/minecraft/hasJoined"'
 }
 
+# persisted_archive_block echoes the operator-owned [archive] keys an earlier run
+# left behind — the retention window, the pre-reap warn offsets, the local cap —
+# so a re-run does not silently revert them to the built-ins the reaper carries
+# (felis reaper reads these from the config Secret at run time; defaults: 90d
+# retention, 3d/1d warnings, no cap). store and local_path are NOT carried: this
+# script owns them (FELIS_ARCHIVE_LOCAL_PATH must equal the mount). Same
+# first-readable-file rule as persisted_smtp_block; warn_before must be a
+# single-line TOML array (the shape every writer here emits).
+persisted_archive_block() {
+  local f out
+  for f in "${STATE_DIR}/felis.host.toml" "${STATE_DIR}/felis.pod.toml"; do
+    [ -r "$f" ] || continue
+    out="$(awk '
+      /^[[:space:]]*\[/ { sect = $0; next }
+      sect ~ /^[[:space:]]*\[archive\][[:space:]]*$/ &&
+        /^[[:space:]]*(retention|warn_before|max_local_bytes)[[:space:]]*=/ { print }
+    ' "$f")"
+    [ -n "$out" ] || continue
+    printf '%s\n' "$out"
+    return 0
+  done
+}
+
 # persisted_registry_block echoes the operator-owned [registry] keys an earlier run
 # left behind — the build-lane executor mirrors, the resource caps, the uploads
 # backend and its [registry.s3] subtable — so §15's upgrade path (re-run the
@@ -2157,7 +2180,7 @@ persisted_registry_block() {
 }
 
 write_felis_toml() {
-  local target="$1" db_host="$2" smtp_block auth_source_blocks registry_block
+  local target="$1" db_host="$2" smtp_block auth_source_blocks registry_block archive_block
   smtp_block="$(persisted_smtp_block)"
   if [ -n "$smtp_block" ]; then
     log "carrying forward the configured [smtp] relay"
@@ -2169,10 +2192,15 @@ write_felis_toml() {
     log "carrying forward the configured [registry] overrides"
     registry_block="${registry_block}"$'\n' # keep a blank line before the next section
   fi
+  archive_block="$(persisted_archive_block)"
+  if [ -n "$archive_block" ]; then
+    log "carrying forward the configured [archive] overrides"
+    archive_block="${archive_block}"$'\n' # keep a blank line before the next section
+  fi
   cat > "$target" <<EOF
 # Generated by deploy/bootstrap.sh; rerun the installer to regenerate. Hand edits are
-# overwritten, except [smtp], [[auth_source]], and the operator-owned [registry]
-# overrides, which carry forward.
+# overwritten, except [smtp], [[auth_source]], and the operator-owned [registry] /
+# [archive] overrides, which carry forward.
 [server]
 listen = "0.0.0.0:8080"
 root_domain = "${FELIS_ROOT_DOMAIN}"
@@ -2197,7 +2225,7 @@ ${registry_block}
 [archive]
 store = "tarLocal"
 local_path = "${FELIS_ARCHIVE_LOCAL_PATH}"
-
+${archive_block}
 [auth]
 admin_hostname = "op.console.${FELIS_ROOT_DOMAIN}"
 panel_hostname = "console.${FELIS_ROOT_DOMAIN}"

deploy/bootstrap_test.sh

@@ -733,12 +733,13 @@ esac
 
 wrblock="$(awk '/^write_felis_toml\(\) \{/,/^}/' "$BS")"
 prblock="$(awk '/^persisted_registry_block\(\) \{/,/^}/' "$BS")"
-[ -n "$wrblock" ] && [ -n "$prblock" ] \
-  || { echo "FAIL: write_felis_toml / persisted_registry_block not found in $BS"; exit 1; }
+pablock="$(awk '/^persisted_archive_block\(\) \{/,/^}/' "$BS")"
+{ [ -n "$wrblock" ] && [ -n "$prblock" ] && [ -n "$pablock" ]; } \
+  || { echo "FAIL: write_felis_toml / persisted_{registry,archive}_block not found in $BS"; exit 1; }
 # The blocks quote themselves (the awk program uses single quotes), so they are
 # sourced from a file instead of being spliced into a single-quoted bash -c.
 fnfile="$(mktemp)"
-printf '%s\n%s\n' "$prblock" "$wrblock" > "$fnfile"
+printf '%s\n%s\n%s\n' "$prblock" "$pablock" "$wrblock" > "$fnfile"
 
 rdir="$(mktemp -d)"
 cat > "$rdir/felis.host.toml" <<'TOML'
@@ -751,6 +752,11 @@ trivy_db_repository = "registry.felis.svc:5000/mirror/trivy-db:2"
 [registry.s3]
 endpoint = "https://s3.example"
 region = "us-east-1"
+
+[archive]
+store = "tarLocal"
+local_path = "/stale/path"
+retention = "30d"
 TOML
 
 run_write() { # out-file
@@ -772,8 +778,11 @@ expect "a re-run carries the build-lane executor mirrors" \
 expect "a re-run carries the [registry.s3] uploads subtable" "[registry.s3]" "$out"
 expect "the carried subtable keeps its keys" 'endpoint = "https://s3.example"' "$out"
 expect "url stays installer-owned" 'url = "registry.felis.svc:5000"' "$out"
+expect "a re-run carries the archive retention window" 'retention = "30d"' "$out"
+expect "the archive mount stays installer-owned" 'local_path = "/a"' "$out"
 case "$out" in
-  *stale.invalid* | *stale-ns*) echo "FAIL: stale installer-owned registry values survived the re-run"; fails=$((fails + 1)) ;;
+  *stale.invalid* | *stale-ns* | *stale/path*)
+    echo "FAIL: stale installer-owned values survived the re-run"; fails=$((fails + 1)) ;;
 esac
 
 cp "$rdir/out.toml" "$rdir/felis.host.toml"