- fixed typo in master.sh script

- removed unnecessary exposed ports from client and chunkserver
- added metalogger

Author: alchemyx

docker-compose.yml

@@ -27,6 +27,23 @@ services:
     depends_on:
       - mfsmaster
 
+  mfsmetalogger:
+    build: ./moosefs-metalogger
+    container_name: "mfsmetalogger"
+    networks:
+      moosefsnet:
+        ipv4_address: "172.20.0.4"
+    volumes:
+      - ./data/metalogger/meta:/var/lib/mfs
+    environment:
+      - MFS_ENV=TEST
+      # In the TEST environment, if metadata.mfs file or other metadata files
+      # like metdata.mfs.back and changelog.0.mfs are missing, the script will
+      # create an EMPTY metadata file!
+      # When MFS_ENV=PROD metdata.mfs file will not be created!
+    depends_on:
+      - mfsmaster
+
   mfschunkserver1:
     build: ./moosefs-chunkserver
     container_name: "mfschunkserver1"

moosefs-chunkserver/Dockerfile

@@ -11,7 +11,7 @@ RUN echo "deb http://ppa.moosefs.com/moosefs-3/apt/debian/buster buster main" >
 RUN apt-get update && apt-get install -y moosefs-chunkserver
 
 # Expose ports
-EXPOSE 9419 9420 9422
+EXPOSE 9422
 
 # Add start script
 ADD chunkserver.sh /usr/sbin/chunkserver.sh

moosefs-client/Dockerfile

@@ -13,6 +13,4 @@ RUN apt-get update && apt-get install -y moosefs-client moosefs-cli
 # Make a moosefs mountpoint
 RUN mkdir -p /mnt/moosefs
 
-EXPOSE 9419 9420 9421 9422
-
 CMD ["mfsmount", "-f", "/mnt/moosefs"]

moosefs-master/master.sh

@@ -22,7 +22,7 @@ else
             echo "MFSM NEW" > /var/lib/mfs/metadata.mfs
             exec mfsmaster -f
         else
-            echo "No /var/lib/mfs/metadta.mfs file!"
+            echo "No /var/lib/mfs/metadata.mfs file!"
             echo "EXITING - THS IS PRODUCTION ENVIRONMENT!"
             exit 1
         fi

moosefs-metalogger/Dockerfile

@@ -0,0 +1,20 @@
+FROM debian:buster
+
+# Install wget and gnupg2
+RUN apt-get update && apt-get install -y wget gnupg2
+
+# Add key
+RUN wget -O - http://ppa.moosefs.com/moosefs.key 2>/dev/null | apt-key add - 2>/dev/null
+RUN echo "deb http://ppa.moosefs.com/moosefs-3/apt/debian/buster buster main" > /etc/apt/sources.list.d/moosefs.list
+
+# Install MooseFS metalogger
+RUN apt-get update && apt-get install -y moosefs-metalogger
+
+# Expose ports master ports
+EXPOSE 9419 9420 9421
+
+# Add and run start script
+ADD metalogger.sh /usr/sbin/metalogger.sh
+RUN chown root:root /usr/sbin/metalogger.sh ; chmod 700 /usr/sbin/metalogger.sh
+
+CMD ["metalogger.sh"]

moosefs-metalogger/metalogger.sh

@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+
+# Set default MooseFS enviroment to PRODUCTION
+MFS_ENV="${MFS_ENV:-PROD}"
+
+#Set correct owner
+chown -R mfs:mfs /var/lib/mfs
+
+# We have to be sure that we have metadata files
+if [ -f /var/lib/mfs/metadata.mfs ];
+then
+    exec mfsmetalogger -f
+else
+    if [[ -f /var/lib/mfs/metadata.mfs.back.1 && -f /var/lib/mfs/changelog.0.mfs ]];
+    then
+        echo "Can't find metadata.mfs file"
+        echo "Let's try to restore it"
+        exec mfsmetalogger -a -f
+    else
+        if [  "$MFS_ENV" == "TEST" ];
+        then
+            echo "MFSM NEW" > /var/lib/mfs/metadata.mfs
+            exec mfsmetalogger -f
+        else
+            echo "No /var/lib/mfs/metadata.mfs file!"
+            echo "EXITING - THS IS PRODUCTION ENVIRONMENT!"
+            exit 1
+        fi
+    fi
+fi