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Merge pull request eugenp#3775 from eugenp/BAEL-1572
move start instance
2 parents 1336352 + 572509f commit 2df20b0

1 file changed

Lines changed: 16 additions & 16 deletions

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aws/src/main/java/com/baeldung/ec2/EC2Application.java

Lines changed: 16 additions & 16 deletions
Original file line numberDiff line numberDiff line change
@@ -39,18 +39,18 @@ public class EC2Application {
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public static void main(String[] args) {
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42-
// 0) - Set up the client
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// Set up the client
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AmazonEC2 ec2Client = AmazonEC2ClientBuilder.standard()
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.withCredentials(new AWSStaticCredentialsProvider(credentials))
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.withRegion(Regions.US_EAST_1)
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.build();
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// 1) - Create a security group
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// Create a security group
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CreateSecurityGroupRequest createSecurityGroupRequest = new CreateSecurityGroupRequest().withGroupName("BaeldungSecurityGroup")
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.withDescription("Baeldung Security Group");
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ec2Client.createSecurityGroup(createSecurityGroupRequest);
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// 2) - Allow HTTP and SSH traffic
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// Allow HTTP and SSH traffic
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IpRange ipRange1 = new IpRange().withCidrIp("0.0.0.0/0");
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IpPermission ipPermission1 = new IpPermission().withIpv4Ranges(Arrays.asList(new IpRange[] { ipRange1 }))
@@ -69,19 +69,19 @@ public static void main(String[] args) {
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ec2Client.authorizeSecurityGroupIngress(authorizeSecurityGroupIngressRequest);
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// 3) - Create KeyPair
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// Create KeyPair
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CreateKeyPairRequest createKeyPairRequest = new CreateKeyPairRequest()
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.withKeyName("baeldung-key-pair");
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CreateKeyPairResult createKeyPairResult = ec2Client.createKeyPair(createKeyPairRequest);
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String privateKey = createKeyPairResult
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.getKeyPair()
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.getKeyMaterial(); // make sure you keep it, the private key, Amazon doesn't store the private key
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// 4) - See what key-pairs you've got
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// See what key-pairs you've got
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DescribeKeyPairsRequest describeKeyPairsRequest = new DescribeKeyPairsRequest();
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DescribeKeyPairsResult describeKeyPairsResult = ec2Client.describeKeyPairs(describeKeyPairsRequest);
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// 5) - Launch an Amazon Instance
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// Launch an Amazon Instance
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RunInstancesRequest runInstancesRequest = new RunInstancesRequest().withImageId("ami-97785bed") // https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AMIs.html | https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/usingsharedamis-finding.html
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.withInstanceType("t2.micro") // https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-types.html
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.withMinCount(1)
@@ -91,7 +91,13 @@ public static void main(String[] args) {
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String yourInstanceId = ec2Client.runInstances(runInstancesRequest).getReservation().getInstances().get(0).getInstanceId();
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// 6) Monitor Instances
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// Start an Instance
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StartInstancesRequest startInstancesRequest = new StartInstancesRequest()
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.withInstanceIds(yourInstanceId);
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ec2Client.startInstances(startInstancesRequest);
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// Monitor Instances
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MonitorInstancesRequest monitorInstancesRequest = new MonitorInstancesRequest()
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.withInstanceIds(yourInstanceId);
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@@ -102,14 +108,14 @@ public static void main(String[] args) {
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ec2Client.unmonitorInstances(unmonitorInstancesRequest);
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// 7) - Reboot an Instance
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// Reboot an Instance
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RebootInstancesRequest rebootInstancesRequest = new RebootInstancesRequest()
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.withInstanceIds(yourInstanceId);
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ec2Client.rebootInstances(rebootInstancesRequest);
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// 8) - Stop an Instance
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// Stop an Instance
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StopInstancesRequest stopInstancesRequest = new StopInstancesRequest()
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.withInstanceIds(yourInstanceId);
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@@ -119,13 +125,7 @@ public static void main(String[] args) {
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.getPreviousState()
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.getName();
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// 9) - Start an Instance
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StartInstancesRequest startInstancesRequest = new StartInstancesRequest()
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.withInstanceIds(yourInstanceId);
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ec2Client.startInstances(startInstancesRequest);
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// 10) - Describe an Instance
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// Describe an Instance
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DescribeInstancesRequest describeInstancesRequest = new DescribeInstancesRequest();
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DescribeInstancesResult response = ec2Client.describeInstances(describeInstancesRequest);
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System.out.println(response.getReservations()

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