Editing the docs to reflect the installation process using ansible

docs/developer_guide/gofr_installation.md

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+# How to install GOFR
+
+## GOFR Installation
+
+### 1. Install redis
+
+    sudo apt install redis
+
+### 2. Install tomcat
+
+    sudo apt install tomcat9
+
+### 3.  Install postgres (version 9.3 or above)
+
+### 4. Install HAPI FHIR
+
+#### a) Create Database
+
+    sudo -u postgres psql
+    create database hapi;
+    create user hapi with encrypted password 'PASS';
+    grant all privileges on database hapi to hapi;
+    \q
+
+#### b) Install maven to compile hapi
+
+    sudo apt install maven
+    git clone <https://github.com/hapifhir/hapi-fhir-jpaserver-starter.git>
+    cd hapi-fhir-jpaserver-starter
+
+ Edit pom.xml and change the following line from hapi-fhir-jpaserver:
+
+    <finalName>hapi</finalName>
+
+ Edit src/main/resources/application.yaml and change the following
+
+    spring.datasource.url=’jdbc:postgresql://localhost:5432/hapi’
+    spring.datasource.username=’hapi’
+    spring.datasource.password=’PASS’
+    spring.datasource.driverClassName=’org.postgresql.Driver’
+
+  Uncomment below lines
+
+    # hibernate.search.enabled: true
+
+    # hibernate.search.backend.type: lucene
+
+    # hibernate.search.backend.analysis.configurer: ca.uhn.fhir.jpa.search.HapiLuceneAnalysisConfigurer
+
+    # hibernate.search.backend.directory.type: local-filesystem
+
+    # hibernate.search.backend.directory.root: target/lucenefiles
+
+    # hibernate.search.backend.lucene_version: lucene_current
+
+  auto_create_placeholder_reference_targets=true
+  hapi.fhir.enable_index_missing_fields=true
+  hapi.fhir.client_id_strategy=ANY
+
+  Uncomment below lines
+
+    # partitioning
+
+    # allow_references_across_partitions: false
+
+    # partitioning_include_in_search_hashes: false
+
+ Create war file
+
+     mvn clean install -DskipTests
+     sudo mkdir /var/lib/tomcat9/target
+     sudo chown tomcat:tomcat /var/lib/tomcat9/target
+     sudo cp target/hapi.war /var/lib/tomcat9/webapps
+
+#### c) Load Basic Definitions
+
+ Download and install hapi-fhir-cli:  <a href="https://hapifhir.io/hapi-fhir/docs/tools/hapi_fhir_cli.html"> here</a> </p>
+
+ Load definitions with below commands ./hapi-fhir-cli upload-definitions -v r4 -t <a href="http://localhost:8080/hapi/fhir"> here </a> </p>
+
+### 5. Keycloak Installation
+
+ !!! Important "Install keycloak only if you want to use it as an identity provider."
+
+ Follow instructions  <a href="https://www.keycloak.org/docs/latest/getting_started/index.html#installing-the-server"> here</a> </p>
+
+### 6. Keycloak Configuration
+
+ Modify keycloak base URL to keycloak/auth by changing web-context in standalone/configuration/standalone.xml to keycloak/auth.
+
+ This will make keycloak accessible via <http://localhost:8080/keycloak/auth>
+
+ Copy GOFR keycloak theme to keycloak
+
+     cp -r gofr/resources/keycloak/themes/gofr keycloak/themes/
+
+ Load GOFR keycloak realm
+
+  Before loading the realm, make sure that Keycloak is running, if not running, please use below command to start it
+
+     bin/standalone.sh
+
+  To load the realm, first login to keycloak by running below command
+
+     ./kcadm.sh config credentials --server <http://localhost:8080/keycloak/auth> --realm master --user admin --password admin
+
+  where **username** and **password** refers to an admin account that has access to the master realm
+
+  Now load the GOFR keycloak realm with below command
+
+     ./kcadm.sh create realms -f gofr/resources/keycloak/realm.json_
+
+### 7. Clone GOFR github repository
+
+    git clone <https://github.com/intrahealth/gofr.git>
+
+### 8. Install dependencies
+
+    cd gofr/gofr-backend
+    npm install
+
+### 9 Running GOFR in production mode
+
+    cd gofr/gofr-backend/lib
+    node app.js
+
+### 10. Accessing GOFR
+
+    <http://localhost:4000>
+
+
+Install redis.
+```sh
+sudo apt install redis
+```
+Install tomcat.
+```sh
+sudo apt install tomcat9
+```
+Install postgres (version 9.3 or above)
+
+Install HAPI FHIR
+
+Create database
+```pgsql
+sudo -u postgres psql
+create database hapi;
+create user hapi with encrypted password 'PASS';
+grant all privileges on database hapi to hapi;
+\q
+```
+
+Install maven to compile hapi
+```sh
+sudo apt install maven
+```
+
+```sh
+git clone https://github.com/hapifhir/hapi-fhir-jpaserver-starter.git
+cd hapi-fhir-jpaserver-starter
+```
+
+Edit pom.xml and change the following line from hapi-fhir-jpaserver:
+```xml
+<finalName>hapi</finalName>
+```
+
+Edit src/main/resources/application.yaml and change the following
+```yaml
+spring.datasource.url=’jdbc:postgresql://localhost:5432/hapi’
+spring.datasource.username=’hapi’
+spring.datasource.password=’PASS’
+spring.datasource.driverClassName=’org.postgresql.Driver’
+# Uncomment below lines
+# hibernate.search.enabled: true
+# hibernate.search.backend.type: lucene
+# hibernate.search.backend.analysis.configurer: ca.uhn.fhir.jpa.search.HapiLuceneAnalysisConfigurer
+# hibernate.search.backend.directory.type: local-filesystem
+# hibernate.search.backend.directory.root: target/lucenefiles
+# hibernate.search.backend.lucene_version: lucene_current
+
+auto_create_placeholder_reference_targets=true
+hapi.fhir.enable_index_missing_fields=true
+hapi.fhir.client_id_strategy=ANY
+# Uncomment below lines
+# partitioning:
+    # allow_references_across_partitions: false
+    # partitioning_include_in_search_hashes: false
+```
+
+Create war file
+```
+mvn clean install -DskipTests
+sudo mkdir /var/lib/tomcat9/target
+sudo chown tomcat:tomcat /var/lib/tomcat9/target
+sudo cp target/hapi.war /var/lib/tomcat9/webapps
+```
+
+Load Basic Definitions
+* Download and install hapi-fhir-cli: here https://hapifhir.io/hapi-fhir/docs/tools/hapi_fhir_cli.html
+* Load definitions with below commands `./hapi-fhir-cli upload-definitions -v r4 -t http://localhost:8080/hapi/fhir/`
+
+
+
+
+## Introduction to Key Cloak
+
+**Keycloak** is a **single sign on solution** for web apps such as the **Global Open Facilities Registry system (GOFR)** and other RESTful web services.
+
+The goal of **Keycloak** is to make security simple so that it is easy for application developers to secure the apps and services they have deployed in their organization.
+
+Security features that developers normally have to write for themselves are provided out of the box and are easily tailorable to the individual requirements of your organization.
+
+**Keycloak** provides **customizable user interfaces** for login, registration, administration, and account management.
+
+You can also use Keycloak as an **integration platform** to hook it into existing LDAP and Active Directory servers.
+
+You can also **delegate authentication** to third party identity providers like Facebook and Google.
+
+ <p>  For more information about Keycloak see  <a href="https://www.keycloak.org/documentation"> Developer guide</a> </p>
+
+## Setting up Keycloak for GOFR
+
+The initial server configuration includes an administrator account assigned the  **administrator** role in keycloak by default.
+
+This account and password should be immediately changed after installation.
+
+!!! important " Install keycloak only if you want to use it as an identity provider. Follow instructions here <https://www.keycloak.org/docs/latest/getting_started/index.html#installing-the-server> to install keycloak." 
+
+
+ Modify keycloak base URL to keycloak/auth by changing web-context in standalone/configuration/standalone.xml to keycloak/auth. 
+
+ This will make keycloak accessible via <http://localhost:8080/keycloak/auth>
+
+ Copy GOFR keycloak theme to keycloak
+
+     cp -r gofr/resources/keycloak/themes/gofr keycloak/themes/
+
+ Load GOFR keycloak realm
+
+  Before loading the realm, make sure that Keycloak is running, if not running, please use below command to start it
+
+     bin/standalone.sh
+
+To load the realm, first login to keycloak by running below command where username and password refers to an admin account that has access to the master realm
+
+  To load the realm, first login to keycloak by running below command 
+
+     ./kcadm.sh config credentials --server <http://localhost:8080/keycloak/auth> --realm master --user admin --password admin
+
+  where **username** and **password** refers to an admin account that has access to the master realm
+
+  Now load the GOFR keycloak realm with below command
+
+     ./kcadm.sh create realms -f gofr/resources/keycloak/realm.json_
+
+Clone GOFR github repository
+```
+git clone https://github.com/intrahealth/gofr.git
+```
+
+Install dependencies
+```
+cd gofr/gofr-backend
+npm install
+```
+
+Running GOFR in production mode
+```
+cd gofr/gofr-backend/lib
+node app.js
+```
+Access GOFR at: http://localhost:4000
+
+## Running GOFR in Development Mode
+
+  Install UI dependencies
+
+    cd gofr/gofr-gui
+    npm install
+
+ Start the UI
+
+    cd gofr/gofr-gui
+    npm run serve
+
+ Start the backend
+
+    cd gofr/gofr-backend/lib
+    node app.js
+
+## GOFR installation using Ansible
+
+### Install Ansible
+
+#### CentOS
+
+To run gofr on **CentOS** you will need to run the commands below:
+
+        sudo apt install epel-release
+
+Then:
+
+	    sudo yum install epel-release
+
+And finally:
+
+	    sudo yum install ansible
+
+#### Ubuntu
+
+When using  **Ubuntu** :
+
+1. Run the commands below:
+
+    	sudo apt install Ansible
+
+2. Edit **/etc/ansible/hosts** and add **127.0.0.1**
+
+3. Install Ansible modules :
+
+
+	    ansible-galaxy collection install ansible.utils
+	    ansible-galaxy collection install community.postgresql
+
+4. clone gofr with command:
+
+	    git clone https://github.com/intrahealth/gofr.git
+
+5. change dir to Ansible
+
+	    cd gofr/packaging/ansible
+
+Depending on your operating system, change **dir** to the OS folder  i.e if you are using **Ubuntu**, change to ubuntu as below:
+
+	cd ubuntu
+
+Start installation by executing the **run.sh**
+
+	sudo bash run.sh