Add configurable limit to number of pings during inflxudb startup. (#488)

Author: danxmoran

influxdb/2.0/Dockerfile

@@ -59,3 +59,4 @@ EXPOSE 8086
 
 ENV INFLUX_CONFIGS_PATH /etc/influxdb2/influx-configs
 ENV INFLUXD_INIT_PORT 9999
+ENV INFLUXD_INIT_PING_ATTEMPTS 600

influxdb/2.0/alpine/Dockerfile

@@ -70,3 +70,4 @@ EXPOSE 8086
 
 ENV INFLUX_CONFIGS_PATH /etc/influxdb2/influx-configs
 ENV INFLUXD_INIT_PORT 9999
+ENV INFLUXD_INIT_PING_ATTEMPTS 600

influxdb/2.0/alpine/entrypoint.sh

@@ -159,7 +159,7 @@ function upgrade_influxd () {
 function wait_for_influxd () {
     local -r influxd_pid=$1
     local ping_count=0
-    while kill -0 "${influxd_pid}"; do
+    while kill -0 "${influxd_pid}" && [ ${ping_count} -lt ${INFLUXD_INIT_PING_ATTEMPTS} ]; do
         sleep 1
         log info "pinging influxd..." ping_attempt ${ping_count}
         ping_count=$((ping_count+1))
@@ -168,7 +168,11 @@ function wait_for_influxd () {
             return
         fi
     done
-    log error "influxd crashed during startup" total_pings ${ping_count}
+    if [ ${ping_count} -eq ${INFLUXD_INIT_PING_ATTEMPTS} ]; then
+        log error "influxd took too long to start up" total_pings ${ping_count}
+    else
+        log error "influxd crashed during startup" total_pings ${ping_count}
+    fi
     exit 1
 }
 

influxdb/2.0/entrypoint.sh

@@ -159,7 +159,7 @@ function upgrade_influxd () {
 function wait_for_influxd () {
     local -r influxd_pid=$1
     local ping_count=0
-    while kill -0 "${influxd_pid}"; do
+    while kill -0 "${influxd_pid}" && [ ${ping_count} -lt ${INFLUXD_INIT_PING_ATTEMPTS} ]; do
         sleep 1
         log info "pinging influxd..." ping_attempt ${ping_count}
         ping_count=$((ping_count+1))
@@ -168,7 +168,11 @@ function wait_for_influxd () {
             return
         fi
     done
-    log error "influxd crashed during startup" total_pings ${ping_count}
+    if [ ${ping_count} -eq ${INFLUXD_INIT_PING_ATTEMPTS} ]; then
+        log error "influxd took too long to start up" total_pings ${ping_count}
+    else
+        log error "influxd crashed during startup" total_pings ${ping_count}
+    fi
     exit 1
 }