Migrating to bahmni-installer rpm based installation

Before installation of bahmni-installer rpm

Remove epel-release rpm before installing bahmni-installer rpm

yum remove epel-release

Instructions to bahmni installation using bahmni-installer rpm is available in Install Bahmni on CentOS using bahmni-installer rpm. Proceed till step 5 as mentioned in the link. After Step 5, following things have to be done manually to migrate from old sh based installation to bahmni-installer rpm based installation:

After installation of bahmni-installer rpm

Stop all services

service tomcat stop
service openerp stop
service nagios stop

switch off chkconfig for tomcat, openerp.

chkconfig tomcat off
chkconfig openerp off

Move bahmni related webapps from tomcat's webapps directory to some other directory.

cd ~/apache-tomcat-8.0.12 #cd into apache tomcat directory
mkdir -p old_webapps
mv webapps/openmrs old_webapps/
mv webapps/bahmnireports old_webapps/
mv webapps/openelis/ old_webapps/
mv webapps/openerp-atomfeed-service/ old_webapps/
mv webapps/pacs-integration old_webapps/
rm -rf webapps/bahmnireports.war
rm -rf webapps/pacs-integration.war
rm -rf webapps/openerp-atomfeed-service.war
rm -rf webapps/openelis.war
rm -rf webapps/openmrs.war

Take backup of all individual DBs **IMPORTANT**
```
bahmni -i <inventory_file_name> db-backup
```
Take backup of service logs if necessary.

Backup certain properties files

mv /home/bahmni/.OpenMRS/bahmnicore.properties /home/bahmni/.OpenMRS/bahmnicore.properties.bkp
mv /home/bahmni/.bahmni-reports/bahmni-reports.properties /home/bahmni/.bahmni-reports/bahmni-reports.properties.bkp
mv /etc/init.d/openerp /etc/init.d/openerp.bkp

Take Backup of Nagios
```
cp -r /etc/nagios /etc/nagios_bkup
```
Uninstall mysql if it is 5.6.12 since mysqld service is not present.
To see the list of mysql components installed, run the following command:
```
yum list installed | grep MySQL
```
Uninstall the listed components. But be aware of the dependencies which might get removed by removing mysql components as well.
check whether pg_basebackup command is available. If it is not available, use alternatives to make /usr/pgsql-9.2/bin/pg_basebackup available to /usr/bin
```
/usr/sbin/update-alternatives --install /usr/bin/pg_basebackup pgsql-pg_basebackup /usr/pgsql-9.2/bin/pg_basebackup 920
```

Now the installation can be continued from Step 7 as mentioned in the link - Trigger Installation

Some common errors and steps to resolve them

When any yum operation fails with the error - 'Error: Cannot retrieve metalink for repository: epel. Please verify its path and try again', execute the following:
```
sudo yum upgrade ca-certificates --disablerepo=epel
```
rpm -e jdk or yum remove jdk(If JAVA conflict occurs.)
On starting the installation, if it fails saying that ansible could not be installed or ansible-playbook command is not found, epel-release rpm has to be reinstalled.
```
yum remove epel-release
yum install epel-release
```

After deployment

Check whether mysql and psql replication works.

Move patient_images, uploaded-files, uploaded_results, document_images from old tomcat user home folder to /home/bahmni folder. In the below snippet, We have assumed that 'jss' user had tomcat deployed in it. This step is not applicable if 'bahmni' was the old tomcat user.

mv /home/jss/patient_images/* /home/bahmni/patient_images/
mv /home/jss/uploaded-files/elis/* /home/bahmni/uploaded-files/elis/
mv /home/jss/uploaded-files/mrs/* /home/bahmni/uploaded-files/mrs/
mv /home/jss/uploaded_results/* /home/bahmni/uploaded_results/
mv /home/jss/document_images/* /home/bahmni/document_images/
           
cd /home/bahmni           
chown -R bahmni:bahmni document_images/         
chown -R bahmni:bahmni patient_images/
chown -R bahmni:bahmni uploaded-files/
chown -R bahmni:bahmni uploaded_results/
chmod -R 755 document_images/
chmod -R 755 patient_images/
chmod -R 755 uploaded-files/
chmod -R 755 uploaded_results/

Update global_poperties in openmrs to have /home/bahmni as directory instead of /home/jss
a) emr.personImagesDirectory
b) uploaded.files.directory
There can be some more as well
Update site information – parentOfUploadedFilesDirectory – check for the value once before doing it in clinlims database.
```
update site_information set value= '/home/bahmni' where name = 'parentOfUploadedFilesDirectory';
```
With the new way of installation, we had made 'bahmni' user as just run user. And we add a new user called 'bahmni_support' for ssh purposes.

a) Inorder to make bahmni as non-ssh user, following command needs to be executed. This command will lock the 'bahmni' user account for login.
```
 passwd -l bahmni
```
b) Inorder to make bahmni as non-sudoer, do the following – Be very careful with this step

1. type 'visudo' in shell

2. Remove the line bahmni ALL=(ALL) NOPASSWD:ALL

3. save it