refinements and enable observability services

Author: MoeMahhouk

bob-common/mkosi.extra/etc/prometheus/prometheus.yml.tmpl

@@ -23,9 +23,9 @@ scrape_configs:
     static_configs:
       - targets: ['localhost:9256']
 
+{{ if (datasource "config" "remote_write_flashbots_url") }}
 # Remote write configuration (dynamically configured)
 remote_write:
-{{ if (datasource "config" "remote_write_flashbots_url") }}
   # Flashbots endpoint
   - url: {{ datasource "config" "remote_write_flashbots_url" }}
     write_relabel_configs:

bob-common/mkosi.extra/usr/bin/fetch-config.sh

@@ -46,19 +46,17 @@ CONFIG_METRICS_FLASHBOTS_PASSWORD='${metrics_flashbots_password}'
 METRICS_ENDPOINT='${metrics_endpoint}'
 EOF
 
-    # Create observability config for Prometheus if metrics are configured
-    if [ -n "$metrics_flashbots_url" ]; then
-        mkdir -p /etc/flashbox
-        cat <<EOF > "$OBSERVABILITY_CONFIG_PATH"
+    # Create observability config for Prometheus (always needed for gomplate templating)
+    mkdir -p /etc/flashbox
+    cat <<EOF > "$OBSERVABILITY_CONFIG_PATH"
 {
   "remote_write_flashbots_url": "${metrics_flashbots_url}",
   "remote_write_flashbots_username": "${metrics_flashbots_username}",
   "remote_write_flashbots_password": "${metrics_flashbots_password}",
   "remote_write_flashbots_auth": $([ -n "${metrics_flashbots_username}" ] && echo '"true"' || echo '""')
 }
 EOF
-        echo "Observability configuration written to $OBSERVABILITY_CONFIG_PATH"
-    fi
+    echo "Observability configuration written to $OBSERVABILITY_CONFIG_PATH"
 }
 
 # Check for local QEMU development environment

bob-common/mkosi.postinst

@@ -22,14 +22,19 @@ mkdir "$BUILDROOT/etc/dropbear"
 mkdir -p "$BUILDROOT/etc/systemd/system/minimal.target.wants"
 for service in \
     network-setup.service \
+    fetch-config.service \
     logrotate.timer \
     delay-pipe.service \
     wait-for-key.service \
     searcher-firewall.service \
     dropbear.service \
+    input-only-proxy.service \
     searcher-container.service \
     ssh-pubkey-server.service \
-    cvm-reverse-proxy.service
+    cvm-reverse-proxy.service \
+    prometheus.service \
+    node-exporter.service \
+    process-exporter.service
 do
     mkosi-chroot systemctl enable "$service"
     ln -sf "/etc/systemd/system/$service" "$BUILDROOT/etc/systemd/system/minimal.target.wants/"