[FAB-8567] Alt: Always use volumes for ledger (m)

Docker compose makes volume management easy and transparent to the user.
By defaulting the ledgers to be docker compose volumes, we transparently
get ledger persistence for the ugprade case, and may trivially tear the
volumes down in the docker-compose down command with the addition of the
--volumes flag.  This would allow the upgrade scenario to work without
the use of the '-p' flag, and is likely to be generally much cleaner.

Change-Id: I80b36a63370065a7aad0f9c284ec578533123d2b
Signed-off-by: Jason Yellick <jyellick@us.ibm.com>

first-network/base/docker-compose-base.yaml

@@ -28,6 +28,7 @@ services:
     - ../channel-artifacts/genesis.block:/var/hyperledger/orderer/orderer.genesis.block
     - ../crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/msp:/var/hyperledger/orderer/msp
     - ../crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/tls/:/var/hyperledger/orderer/tls
+    - orderer.example.com:/var/hyperledger/production/orderer
     ports:
       - 7050:7050
 
@@ -46,6 +47,7 @@ services:
         - /var/run/:/host/var/run/
         - ../crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/msp:/etc/hyperledger/fabric/msp
         - ../crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls:/etc/hyperledger/fabric/tls
+        - peer0.org1.example.com:/var/hyperledger/production
     ports:
       - 7051:7051
       - 7053:7053
@@ -65,6 +67,7 @@ services:
         - /var/run/:/host/var/run/
         - ../crypto-config/peerOrganizations/org1.example.com/peers/peer1.org1.example.com/msp:/etc/hyperledger/fabric/msp
         - ../crypto-config/peerOrganizations/org1.example.com/peers/peer1.org1.example.com/tls:/etc/hyperledger/fabric/tls
+        - peer1.org1.example.com:/var/hyperledger/production
 
     ports:
       - 8051:7051
@@ -85,6 +88,7 @@ services:
         - /var/run/:/host/var/run/
         - ../crypto-config/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/msp:/etc/hyperledger/fabric/msp
         - ../crypto-config/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls:/etc/hyperledger/fabric/tls
+        - peer0.org2.example.com:/var/hyperledger/production
     ports:
       - 9051:7051
       - 9053:7053
@@ -104,6 +108,7 @@ services:
         - /var/run/:/host/var/run/
         - ../crypto-config/peerOrganizations/org2.example.com/peers/peer1.org2.example.com/msp:/etc/hyperledger/fabric/msp
         - ../crypto-config/peerOrganizations/org2.example.com/peers/peer1.org2.example.com/tls:/etc/hyperledger/fabric/tls
+        - peer1.org2.example.com:/var/hyperledger/production
     ports:
       - 10051:7051
       - 10053:7053

first-network/byfn.sh

@@ -49,7 +49,6 @@ function printHelp () {
   echo "    -s <dbtype> - the database backend to use: goleveldb (default) or couchdb"
   echo "    -l <language> - the chaincode language: golang (default) or node"
   echo "    -i <imagetag> - the tag to be used to launch the network (defaults to \"latest\")"
-  echo "    -p - persist the ledgers of the containers to the ./ledgers/<container> directory"
   echo
   echo "Typically, one would first generate the required certificates and "
   echo "genesis block, then bring up the network. e.g.:"
@@ -154,20 +153,10 @@ function networkUp () {
     replacePrivateKey
     generateChannelArtifacts
   fi
-  if $PERSIST ; then
-      echo "Persisting ledgers to ./ledgers/"
-      mkdir -p ./ledgers/
-      if [ "${IF_COUCHDB}" == "couchdb" ]; then
-          IMAGE_TAG=$IMAGETAG docker-compose -f $COMPOSE_FILE -f $COMPOSE_FILE_PERSIST -f $COMPOSE_FILE_COUCH up -d 2>&1
-      else
-          IMAGE_TAG=$IMAGETAG docker-compose -f $COMPOSE_FILE -f $COMPOSE_FILE_PERSIST up -d 2>&1
-      fi
-   else
-      if [ "${IF_COUCHDB}" == "couchdb" ]; then
-          IMAGE_TAG=$IMAGETAG docker-compose -f $COMPOSE_FILE -f $COMPOSE_FILE_COUCH up -d 2>&1
-      else
-          IMAGE_TAG=$IMAGETAG docker-compose -f $COMPOSE_FILE up -d 2>&1
-      fi
+  if [ "${IF_COUCHDB}" == "couchdb" ]; then
+    IMAGE_TAG=$IMAGETAG docker-compose -f $COMPOSE_FILE -f $COMPOSE_FILE_COUCH up -d 2>&1
+  else
+    IMAGE_TAG=$IMAGETAG docker-compose -f $COMPOSE_FILE up -d 2>&1
   fi
   if [ $? -ne 0 ]; then
     echo "ERROR !!!! Unable to start network"
@@ -185,8 +174,9 @@ function networkUp () {
 # Stop the orderer and peers, backup the ledger from orderer and peers, cleanup chaincode containers and images
 # and relaunch the orderer and peers with latest tag
 function upgradeNetwork () {
-  if [ ! -d ledgers ]; then
-    echo "ERROR !!!! There is no persisted ledgers directory, did you start your network with -p?"
+  docker inspect  -f '{{.Config.Volumes}}' orderer.example.com |grep -q '/var/hyperledger/production/orderer'
+  if [ $? -ne 0 ]; then
+    echo "ERROR !!!! This network does not appear to be using volumes for its ledgers, did you start from fabric-samples >= v1.0.6?"
     exit 1
   fi
 
@@ -197,9 +187,9 @@ function upgradeNetwork () {
 
   export IMAGE_TAG=$IMAGETAG
   if [ "${IF_COUCHDB}" == "couchdb" ]; then
-      COMPOSE_FILES="-f $COMPOSE_FILE -f $COMPOSE_FILE_PERSIST -f $COMPOSE_FILE_COUCH"
+      COMPOSE_FILES="-f $COMPOSE_FILE -f $COMPOSE_FILE_COUCH"
   else
-      COMPOSE_FILES="-f $COMPOSE_FILE -f $COMPOSE_FILE_PERSIST"
+      COMPOSE_FILES="-f $COMPOSE_FILE"
   fi
 
   # removing the cli container
@@ -242,12 +232,12 @@ function upgradeNetwork () {
 
 # Tear down running network
 function networkDown () {
-  docker-compose -f $COMPOSE_FILE down
-  docker-compose -f $COMPOSE_FILE -f $COMPOSE_FILE_COUCH down
-  # Don't remove containers, images, etc if restarting
+  docker-compose -f $COMPOSE_FILE -f $COMPOSE_FILE_COUCH down --volumes
+  docker-compose -f $COMPOSE_FILE down --volumes
+  # Don't remove the generated artifacts -- note, the ledgers are always removed
   if [ "$MODE" != "restart" ]; then
-    #Delete any persisted ledgers
-    docker run -v $PWD:/tmp/first-network --rm hyperledger/fabric-tools:$IMAGETAG rm -Rf /tmp/first-network/ledgers
+    # Bring down the network, deleting the volumes
+    #Delete any ledger backups
     docker run -v $PWD:/tmp/first-network --rm hyperledger/fabric-tools:$IMAGETAG rm -Rf /tmp/first-network/ledgers-backup
     #Cleanup the chaincode containers
     clearContainers
@@ -439,9 +429,6 @@ COMPOSE_FILE_COUCH=docker-compose-couch.yaml
 LANGUAGE=golang
 # default image tag
 IMAGETAG="latest"
-# By default, to not use volume mounts for the ledgers
-PERSIST="false"
-COMPOSE_FILE_PERSIST=docker-compose-persist.yaml
 # Parse commandline args
 if [ "$1" = "-m" ];then	# supports old usage, muscle memory is powerful!
     shift
@@ -463,7 +450,7 @@ else
   exit 1
 fi
 
-while getopts "h?m:c:t:d:f:s:l:i:p" opt; do
+while getopts "h?m:c:t:d:f:s:l:i:" opt; do
   case "$opt" in
     h|\?)
       printHelp
@@ -483,8 +470,6 @@ while getopts "h?m:c:t:d:f:s:l:i:p" opt; do
     ;;
     i)  IMAGETAG=`uname -m`"-"$OPTARG
     ;;
-    p)  PERSIST=true
-    ;;
   esac
 done
 

first-network/docker-compose-cli.yaml

@@ -5,6 +5,13 @@
 
 version: '2'
 
+volumes:
+  orderer.example.com:
+  peer0.org1.example.com:
+  peer1.org1.example.com:
+  peer0.org2.example.com:
+  peer1.org2.example.com:
+
 networks:
   byfn:
 

first-network/docker-compose-org3.yaml

@@ -5,6 +5,9 @@
 
 version: '2'
 
+volumes:
+  peer0.org3.example.com:
+  peer1.org3.example.com:
 
 networks:
   byfn:
@@ -25,6 +28,7 @@ services:
         - /var/run/:/host/var/run/
         - ./org3-artifacts/crypto-config/peerOrganizations/org3.example.com/peers/peer0.org3.example.com/msp:/etc/hyperledger/fabric/msp
         - ./org3-artifacts/crypto-config/peerOrganizations/org3.example.com/peers/peer0.org3.example.com/tls:/etc/hyperledger/fabric/tls
+        - peer0.org3.example.com:/var/hyperledger/production
     ports:
       - 11051:7051
       - 11053:7053
@@ -46,6 +50,7 @@ services:
         - /var/run/:/host/var/run/
         - ./org3-artifacts/crypto-config/peerOrganizations/org3.example.com/peers/peer1.org3.example.com/msp:/etc/hyperledger/fabric/msp
         - ./org3-artifacts/crypto-config/peerOrganizations/org3.example.com/peers/peer1.org3.example.com/tls:/etc/hyperledger/fabric/tls
+        - peer1.org3.example.com:/var/hyperledger/production
     ports:
       - 12051:7051
       - 12053:7053

first-network/eyfn.sh

@@ -134,10 +134,8 @@ function networkUp () {
 
 # Tear down running network
 function networkDown () {
-  docker-compose -f $COMPOSE_FILE_ORG3 down
-  docker-compose -f $COMPOSE_FILE_ORG3 -f $COMPOSE_FILE_COUCH_ORG3 down
-  docker-compose -f $COMPOSE_FILE down
-  docker-compose -f $COMPOSE_FILE -f $COMPOSE_FILE_COUCH down
+  docker-compose -f $COMPOSE_FILE -f $COMPOSE_FILE_ORG3 down --volumes
+  docker-compose -f $COMPOSE_FILE -f $COMPOSE_FILE_ORG3 -f $COMPOSE_FILE_COUCH down --volumes
   # Don't remove containers, images, etc if restarting
   if [ "$MODE" != "restart" ]; then
     #Cleanup the chaincode containers
@@ -149,6 +147,10 @@ function networkDown () {
     # remove the docker-compose yaml file that was customized to the example
     rm -f docker-compose-e2e.yaml
   fi
+
+  # For some black-magic reason the first docker-compose down does not actually cleanup the volumes
+  docker-compose -f $COMPOSE_FILE -f $COMPOSE_FILE_ORG3 down --volumes
+  docker-compose -f $COMPOSE_FILE -f $COMPOSE_FILE_ORG3 -f $COMPOSE_FILE_COUCH down --volumes
 }
 
 # Use the CLI container to create the configuration transaction needed to add