Have the code ? Need a quick deployment to be done ? Just make a few configuration changes, do a few clicks & you are up and running !<\/p>\n
In Elastic Beanstalk an application can be created and under that many environments can be created. The main configuration file of EB is .ebextensions<\/strong> which Elastic Beanstalk creates on its own on the server.<\/p>\n 1. Go to the AWS Elastic Beanstalk Console.<\/span> 2. Create a New Application. Choose the Type of application. For now, EB Supports Docker, PHP, Java Tomcat, Ruby etc. For this demo we will choose Tomcat 7 Java 7.<\/span> 3. Now, create a New Environment. Choose Web Server.<\/span> Since at this point of time we don’t know the RDS endpoint & the Elastic Beanstalk Environment URL we will choose sample application.<\/p>\n RDS options<\/strong> :-<\/span><\/p>\n And now, the VPC configurations<\/strong>. 5<\/span>. Elastic Beanstalk will automatically launch all the instances form an infrastructure with EC2, Security Groups, Alarms etc. You can see the events in Recent Events. You can go to configuration tab and make various configuration changes like environment type, RDS changes, VPC & various variables like Heap Memory etc.<\/span> 6.\u00a0Now, go to your Grails application server\/local machine where you create war file. You need to make some changes in DataSource.groovy<\/strong> , C<\/strong>onfig. groovy, Build groovy file.<\/strong><\/span><\/span> [js] You need to replace:-<\/strong><\/span><\/p>\n [js] Now, in config.groovy<\/strong> find the production grails.serverURL variable under environments and put in the URL given in the Elastic Beanstalk dashboard we discussed about earlier.<\/p>\n [js] Also in Build groovy<\/strong> file uncomment java-mysql dependency. Just upload the war file in the Elastic Beanstalk Dashboard & click Deploy. Previous versions can also be deployed by clicking on Application Versions page.<\/p>\n In-case your war is on a server you can use the following command to get the war file from server to local.The steps to deploy a Grails app are as follows :-<\/span>\u00a0<\/span><\/strong><\/span><\/h3>\n
\n![\"rsz_screenshot_from_2015-05-25_110441\"](\"\/blog\/wp-ttn-blog\/uploads\/2015\/05\/rsz_screenshot_from_2015-05-25_110441.png\")
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\n![\"Screenshot](\"\/blog\/wp-ttn-blog\/uploads\/2015\/05\/Screenshot-from-2015-05-25-111814.png\")
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\n![\"Screenshot](\"\/blog\/wp-ttn-blog\/uploads\/2015\/05\/Screenshot-from-2015-05-25-111918.png\")
<\/a><\/p>\n![\"Screenshot](\"\/blog\/wp-ttn-blog\/uploads\/2015\/05\/Screenshot-from-2015-05-25-112034.png\")
<\/a><\/p>\n![\"Screenshot](\"\/blog\/wp-ttn-blog\/uploads\/2015\/05\/Screenshot-from-2015-05-25-112058.png\")
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\n4. Select the required settings like auto-scaled or single Instance environment, VPC\/EC2. You can also select an SNS for reporting changes to your environment.\u00a0You will have to choose an existing database ( RDS ) or you can create a new one by choosing the DB option. Then, if you have chosen to do all this inside a VPC, you need to select the VPC & the subnets.<\/span><\/p>\n![\"Screenshot](\"\/blog\/wp-ttn-blog\/uploads\/2015\/05\/Screenshot-from-2015-05-25-112244.png\")
<\/a><\/p>\n![\"Screenshot](\"\/blog\/wp-ttn-blog\/uploads\/2015\/05\/Screenshot-from-2015-05-25-112412.png\")
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\n![\"Screenshot](\"\/blog\/wp-ttn-blog\/uploads\/2015\/05\/Screenshot-from-2015-05-25-112917.png\")
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\n![\"Screenshot](\"\/blog\/wp-ttn-blog\/uploads\/2015\/05\/Screenshot-from-2015-05-25-113609.png\")
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\n DataSource.groovy <\/strong>file looks like this :-<\/span>
\n![\"Screenshot](\"\/blog\/wp-ttn-blog\/uploads\/2015\/05\/Screenshot-from-2015-05-25-123047.png\")
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\nComment out the lines as in the above image. Elastic Beanstalk reads only the production part. Even if you are using the H2 database use put the lines inside the production.<\/p>\n
\nproduction {
\ndataSource {
\nusername = "{user}"
\npassword = "{password}"
\npooled = true
\ndbCreate = "update"
\ndriverClassName = "com.mysql.jdbc.Driver"
\nurl = \u00a0\u00a0\u00a0"jdbc:mysql:\/\/{endpoint}:{port_number}\/ebdb"
\ndialect = org.hibernate.dialect.MySQL5InnoDBDialect
\nproperties {
\nvalidationQuery = "SELECT 1"
\ntestOnBorrow = true
\ntestOnReturn = true
\ntestWhileIdle = true
\ntimeBetweenEvictionRunsMillis = 1800000
\nnumTestsPerEvictionRun = 3
\nminEvictableIdleTimeMillis = 1800000
\n}
\n}
\n}
\n[\/js]<\/p>\n
\n{user} your RDS instance user name defined earlier.
\n{password} your RDS instance password
\n{endpoint} your RDS endpoint
\n{port} your RDS endpoint port number
\n[\/js]<\/p>\n
\nenvironments {
\n production {
\n grails.logging.jul.usebridge = false
\n grails.serverURL = "http:\/\/{environment_ name}.elasticbeanstalk.com"
\n }
\n}
\n[\/js]<\/p>\n
\nNow, create war using command:-
\ngrails prod war<\/strong><\/p>\n
\nsudo scp -i VPC.pem ubuntu@IP Address:\/home\/ubuntu\/rv\/target\/xyz.war \/home\/user\/Downloads<\/strong> ( To Copy from server to local )<\/p>\n
![\"Screenshot](\"\/blog\/wp-ttn-blog\/uploads\/2015\/05\/Screenshot-from-2015-05-25-181334.png\")
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