added loki, prometheus, promtail, statist

loki/Dockerfile

@@ -0,0 +1,7 @@
+FROM centos:7
+RUN yum update -y && yum install -y unzip && yum clean all
+RUN curl -O -L "https://github.com/grafana/loki/releases/download/v2.1.0/loki-linux-amd64.zip" && unzip loki-linux-amd64.zip -d /loki && rm loki-linux-amd64.zip && cd /loki && chmod a+x "loki-linux-amd64"
+COPY config.yaml /loki
+COPY docker-entrypoint.sh /
+RUN chmod +x /docker-entrypoint.sh
+ENTRYPOINT ["/docker-entrypoint.sh"]

loki/config.yaml

@@ -0,0 +1,37 @@
+auth_enabled: false
+
+server:
+  http_listen_port: 3100
+
+ingester:
+  lifecycler:
+    address: 127.0.0.1
+    ring:
+      kvstore:
+        store: inmemory
+      replication_factor: 1
+    final_sleep: 0s
+  chunk_idle_period: 5m
+  chunk_retain_period: 30s
+
+schema_config:
+  configs:
+  - from: 2020-05-15
+    store: boltdb
+    object_store: filesystem
+    schema: v11
+    index:
+      prefix: index_
+      period: 168h
+
+storage_config:
+  boltdb:
+    directory: /tmp/loki/index
+
+  filesystem:
+    directory: /tmp/loki/chunks
+
+limits_config:
+  enforce_metric_name: false
+  reject_old_samples: true
+  reject_old_samples_max_age: 168h

loki/docker-entrypoint.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+
+
+if [[ (! -z "${LOKI_DAEMON_USER}" ) && ( "${LOKI_DAEMON_USER}" != "root"  ) ]]; then
+	useradd -r -s /bin/false $LOKI_DAEMON_USER
+	if [[ ! -z "${LOKI_DAEMON_USER_UID}" ]]; then
+		usermod -u $LOKI_DAEMON_USER_UID $LOKI_DAEMON_USER
+	fi
+	if [[ ! -z "${LOKI_DAEMON_USER_GID}" ]]; then
+		groupmod -g $LOKI_DAEMON_USER_GID $LOKI_DAEMON_USER
+	fi
+fi
+
+if [ ! -d "/lokidata" ]; then
+	mkdir -p /lokidata
+fi
+
+echo "Chowning Data"
+if [[ ! -z "${LOKI_DAEMON_USER}" ]]; then
+	chown -R $(id -u ${LOKI_DAEMON_USER}):$(id -g ${LOKI_DAEMON_USER}) /loki
+	chown -R $(id -u ${LOKI_DAEMON_USER}):$(id -g ${LOKI_DAEMON_USER}) /lokidata
+else
+	chown -R $(id -u):$(id -g) /loki
+	chown -R $(id -u):$(id -g) /lokidata
+fi
+
+
+if [[ ! -z "${LOKI_DAEMON_USER}" ]]; then
+	runuser -u ${LOKI_DAEMON_USER} -- /loki/loki-linux-amd64 -config.file=/loki/config.yaml
+else
+	/loki/loki-linux-amd64 -config.file=/loki/config.yaml	
+fi