[Add] confd config files

confd/conf.d/opcua.toml

@@ -0,0 +1,9 @@
+[template]
+src = "opcua.tmpl"
+dest = "/data/opcua/opcua.yaml"
+keys = [
+  "/datasource/",
+  "/metrics/"
+]
+#reload_cmd = "pkill -f opcua-exporter && cd /home/lamonki/opcua-expoter/build && ./manage_opcua_exporter.sh | tee /dev/tty"
+

confd/confd.toml

@@ -0,0 +1,6 @@
+backend = "etcd"
+nodes = [
+  "http://etcd:2379",
+]
+watch = true
+

confd/templates/opcua.tmpl

@@ -0,0 +1,26 @@
+datasource:
+  data_source_type: {{ getv "/datasource/data_source_type" }}
+  name: {{ getv "/datasource/name" }}
+  description: {{ getv "/datasource/description" }}
+  opcua_service_address: {{ getv "/datasource/opcua_service_address" }}
+  security_policy_address: {{ getv "/datasource/security_policy_address" }}
+  security_mode: {{ getv "/datasource/security_mode" }}
+  key_authentication_file: {{ getv "/datasource/key_authentication_file" }}
+  certificate_authentication_file: {{ getv "/datasource/certificate_authentication_file" }}
+  trusted_list: {{ getv "/datasource/trusted_list" }}
+  measurement_point_address: {{ getv "/datasource/measurement_point_address" }}
+  interface_address: {{ getv "/datasource/interface_address" }}
+  username: {{ getv "/datasource/username" }}
+  password: {{ getv "/datasource/password" }}
+  certificate_identity_file: {{ getv "/datasource/certificate_identity_file" }}
+  key_identity_file: {{ getv "/datasource/key_identity_file" }}
+  state: {{ getv "/datasource/state" }}
+
+metrics:
+{{ range $index, $element := ls "/metrics" }}
+  - name: "{{ getv (printf "/metrics/%d/name" $index) }}"
+	identifier_type: {{ getv (printf "/metrics/%d/identifier_type" $index) }}"
+    nodeid: {{ getv (printf "/metrics/%d/nodeid" $index) }}
+    help: "{{ getv (printf "/metrics/%d/help" $index) }}"
+{{ end }}
+

docker/confd/Dockerfile

@@ -7,6 +7,7 @@ RUN dnf update -y && \
 RUN curl -fsSL https://github.com/abtreece/confd/releases/download/v0.20.0/confd-v0.20.0-linux-amd64.tar.gz | tar -xz -C /usr/local/bin && \
     chmod +x /usr/local/bin/confd
 
-RUN mkdir /etc/confd
+RUN mkdir /etc/confd && \
+    mkdir /data
 
-CMD [ "confd","-watch", "-backend", "etcd", "-node", "http://etcd:2379"]
+CMD [ "confd"]