From 7b1f69ab3c18344e1c25a218ef8cdf4a6924118e Mon Sep 17 00:00:00 2001
From: Brad Stein <Brad.Stein@gmail.com>
Date: Sat, 4 Apr 2026 18:48:51 -0300
Subject: [PATCH] hecate: allow forced host config templates during install

---
 README.md          |  1 +
 scripts/install.sh | 23 ++++++++++++++++++++++-
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 16818a7..ddf222f 100644
--- a/README.md
+++ b/README.md
@@ -49,6 +49,7 @@ Installer knobs (optional):
 - `HECATE_ENABLE_BOOTSTRAP=1` enables `hecate-bootstrap.service` on this host.
 - `HECATE_ENABLE_BOOTSTRAP=0` disables it; default `auto` enables bootstrap by default.
 - `HECATE_MANAGE_NUT=0` skips writing NUT/udev files.
+- `HECATE_FORCE_CONFIG_TEMPLATE=coordinator|peer|example` overwrites `/etc/hecate/hecate.yaml` from a known template during install.
 - `HECATE_NUT_UPS_NAME` (default inferred from `/etc/hecate/hecate.yaml` target, fallback `pyrphoros`)
 - `HECATE_NUT_VENDOR_ID` / `HECATE_NUT_PRODUCT_ID` (defaults `0764` / `0601`)
 - `HECATE_NUT_MONITOR_USER` / `HECATE_NUT_MONITOR_PASSWORD` (defaults `monuser` / `hecateupsmon`)
diff --git a/scripts/install.sh b/scripts/install.sh
index 9c243a0..dfe8440 100755
--- a/scripts/install.sh
+++ b/scripts/install.sh
@@ -21,6 +21,7 @@ NUT_VENDOR_ID="${HECATE_NUT_VENDOR_ID:-0764}"
 NUT_PRODUCT_ID="${HECATE_NUT_PRODUCT_ID:-0601}"
 NUT_MONITOR_USER="${HECATE_NUT_MONITOR_USER:-monuser}"
 NUT_MONITOR_PASSWORD="${HECATE_NUT_MONITOR_PASSWORD:-hecateupsmon}"
+FORCE_CONFIG_TEMPLATE="${HECATE_FORCE_CONFIG_TEMPLATE:-}"
 
 while [[ $# -gt 0 ]]; do
   case "$1" in
@@ -325,7 +326,27 @@ echo "[install] installing config + state dirs"
 install -d -m 0750 "${CONF_DIR}"
 install -d -m 0750 "${STATE_DIR}"
 install -d -m 0755 "${LIB_DIR}"
-if [[ ! -f "${CONF_DIR}/hecate.yaml" ]]; then
+
+if [[ -n "${FORCE_CONFIG_TEMPLATE}" ]]; then
+  case "${FORCE_CONFIG_TEMPLATE}" in
+    coordinator)
+      install -m 0640 configs/hecate.titan-db.yaml "${CONF_DIR}/hecate.yaml"
+      echo "[install] forced config template: coordinator"
+      ;;
+    peer)
+      install -m 0640 configs/hecate.tethys.yaml "${CONF_DIR}/hecate.yaml"
+      echo "[install] forced config template: peer"
+      ;;
+    example)
+      install -m 0640 configs/hecate.example.yaml "${CONF_DIR}/hecate.yaml"
+      echo "[install] forced config template: example"
+      ;;
+    *)
+      echo "[install] unknown HECATE_FORCE_CONFIG_TEMPLATE value: ${FORCE_CONFIG_TEMPLATE}" >&2
+      exit 1
+      ;;
+  esac
+elif [[ ! -f "${CONF_DIR}/hecate.yaml" ]]; then
   install -m 0640 configs/hecate.example.yaml "${CONF_DIR}/hecate.yaml"
   echo "[install] wrote default config to ${CONF_DIR}/hecate.yaml"
 else