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| Note | ||
|---|---|---|
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If selinux is enabled and at its default configuration during the NMIS installation perl modules will be installed with the wrong path. This will cause NMIS to be non-functional. |
Procedure
Prepare Target CentOS 7 Server
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- opeventsd
- opconfigd
- opflowd
- omkd
- mongod
edit /etc/cron.d/nmis and comment out all cron jobs
This should performed on both servers before running the script.
Run Export Script
Run the following script on the old CentOS 6 server. The following six variables at the top of the script will need to be modified to suit your environment.
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- TARGET : IP address of the new CentOS 7 server.
- NODEDATA: Full path to the directory that contains NMIS node files.
- SOURCE_MONGODBLOCATION: Full path to the current Mongo database directory to be migrated.
- SOURCE_MONGODBDIR: The name of the directory that contains the current MongoDB files.
- DESTINATION_MONGODBLOCATION: Full path to the new Mongo database directory.
- DESTINATION_MONGODBDIR: The name of the directory that will receive the MongoDB files.
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| Code Block | ||
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#!/bin/sh
TARGET=192.168.10.67
NODEDATA=/usr/local/nmis8/database/nodes
SOURCE_MONGODBLOCATION=/data
SOURCE_MONGODBDIR=mongodb
DESTINATION_MONGODBLOCATION=/var/lib
DESTINATION_MONGODBDIR=mongo
NODES=$(fgrep "'name'" /usr/local/nmis8/conf/Nodes.nmis | awk '{print $3}' | tr "\'" ' ' | tr ',' ' ' | awk '{print $1}')
# copy mongodb
rsync --progress -av $SOURCE_MONGODBLOCATION/$SOURCE_MONGODBDIR $TARGET:$DESTINATION_MONGODBLOCATION/.
ssh $TARGET "chown -R mongod:mongod $DESTINATION_MONGODBLOCATION/$DESTINATION_MONGODBDIR"
for NODE in $NODES
do
# create a directory to store the node export JSON files.
install -d $NODEDATA
# export the node records from NMIS
/usr/local/nmis8/admin/node_admin.pl act=export node=$NODE file=$NODEDATA/$NODE.json
# get the node data to the target server
rsync -avz -e ssh $NODEDATA/* $TARGET:$NODEDATA/
rsync -avz -e ssh /usr/local/nmis8/database/nodes/$NODE $TARGET:/usr/local/nmis8/database/nodes
scp /usr/local/nmis8/var/$NODE* $TARGET:/usr/local/nmis8/var
# remotely add the nodes to the TARGET server
ssh -t $TARGET "/usr/local/nmis8/admin/node_admin.pl act=create node=$NODE file=$NODEDATA/$NODE.json"
done
# Update the group list with any new groups
ssh -t $TARGET "/usr/local/nmis8/admin/grouplist.pl patch=true"
# copy NMIS/OMK config
rsync --progress -av /usr/local/nmis8/models root@$TARGET:/usr/local/nmis8/.
rsync --progress -av /usr/local/nmis8/conf root@$TARGET:/usr/local/nmis8/.
rsync --progress -av /usr/local/omk/conf root@$TARGET:/usr/local/omk/.
# Fix file permissions
ssh $TARGET /usr/local/nmis8/admin/fixperms.pl |
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