init

Dockerfile

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+FROM reg.zknt.org/zknt/python
+
+COPY requirements.txt /app/requirements.txt
+WORKDIR /app
+RUN apk add --no-cache libffi && pip3 install -r requirements.txt && apk del libffi
+
+COPY . /app
+ENV FLASK_APP=rspamd_exporter.py
+EXPOSE 5000
+ENTRYPOINT flask run --host=0.0.0.0

requirements.txt

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+requests==2.24.0
+Flask==1.1.2

rspamd_exporter.py

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+import os
+
+import requests
+from flask import Flask
+
+
+password = os.environ.get("RSPAMD_EXPORTER_PASSWORD")
+url = os.environ.get("RSPAMD_EXPORTER_URL")
+instance = os.environ.get("RSPAMD_EXPORTER_INSTANCE")
+
+
+def json_to_prom(json, prefix, instance):
+    outlines = ""
+    for k,v in json.items():
+        k = k.replace(' ', '_')
+        k = k.replace('.', '_')
+        if type(k) != list:
+            v = [v]
+        for item in v:
+            if len(v) != 1:
+                prefix = prefix + "_" + v.index(item)
+            if type(item) is bool:
+                outlines += "{}_{}{{instance=\"{}\"}} {}\n".format(prefix, k, instance, 1 if item else 0)
+            if type(item) in [int, str]:
+                outlines += "{}_{}{{instance=\"{}\"}} {}\n".format(prefix, k, instance,item)
+            if type(item) is dict:
+                outlines += json_to_prom(item, "{}_{}".format(prefix, k), instance)
+    return outlines
+
+
+app = Flask(__name__)
+
+@app.route('/metrics')
+def metrics():
+    rspamd_json = requests.get(url, headers={"Password": password}).json()
+    prom_lines = json_to_prom(rspamd_json, "rspamd", instance)
+    prom_lines += 'up{{instance="{}"}} 1'.format(instance)
+    return prom_lines