From: bravof <fbravo@whitestack.com>
Date: Fri, 3 Jul 2020 14:01:42 +0000 (-0400)
Subject: feat(prometheus): conditional copy of new configuration from configmap avoiding accid... 
X-Git-Tag: v8.0.0rc3~28
X-Git-Url: https://osm.etsi.org/gitweb/?a=commitdiff_plain;h=refs%2Fchanges%2F39%2F9339%2F1;p=osm%2Fdevops.git

feat(prometheus): conditional copy of new configuration from configmap avoiding accidental overwrite of previous config file

Change-Id: I2074318c6e259c4210faaa2ad362114a6fada827
Signed-off-by: bravof <fbravo@whitestack.com>
(cherry picked from commit 9d2556f36dc275078425597b2ec64a4a5eea308d)
---

diff --git a/installers/docker/osm_pods/prometheus.yaml b/installers/docker/osm_pods/prometheus.yaml
index f7fd5698..93cd20ae 100644
--- a/installers/docker/osm_pods/prometheus.yaml
+++ b/installers/docker/osm_pods/prometheus.yaml
@@ -85,10 +85,12 @@ spec:
       - name: prometheus-init-config
         image: busybox
         command: ["/bin/sh", "-c"]
-        args: ["printf \"global:\\n  scrape_interval:     15s\\n  evaluation_interval: 15s\\nscrape_configs:\\n  - job_name: 'prometheus'\\n    static_configs:\\n    - targets: ['mon:8000']\" > /etc/prometheus/prometheus.yml"]
+        args: ['if [ ! -f "/etc/prometheus/prometheus.yml" ]; then cp /etc/prometheus_init/prometheus.yml /etc/prometheus; fi']
         volumeMounts:
           - name: prom-config
             mountPath: /etc/prometheus
+          - name: init-prom-config
+            mountPath: /etc/prometheus_init
       containers:
       - name: prometheus
         image: prom/prometheus:v2.4.3
@@ -109,3 +111,6 @@ spec:
       - name: prom-config
         hostPath:
           path: /var/lib/osm/prometheus
+      - name: init-prom-config
+        configMap:
+          name: prom