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Merge branch 'master' of gogs.informatik.hs-fulda.de:srieger/cloud-computing-msc-ai-examples

# Conflicts:
#	aws-cloudformation-demo/cloudcomp-counter-demo-with-vpc-designer.png
#	aws-cloudformation-demo/cloudcomp-counter-demo-with-vpc.json
#	aws-cloudformation-demo/cloudcomp-counter-demo.json
#	aws-turnserver/stop.py
#	example-projects/counter-demo/aws-cloudformation-demo/cloudcomp-counter-demo-with-vpc-designer.png
#	example-projects/counter-demo/aws-cloudformation-demo/cloudcomp-counter-demo-with-vpc.json
#	example-projects/counter-demo/aws-cloudformation-demo/cloudcomp-counter-demo.json
#	example-projects/counter-demo/aws-cloudformation/cloudcomp-counter-demo-with-vpc-designer.png
#	example-projects/counter-demo/aws-cloudformation/cloudcomp-counter-demo-with-vpc.json
#	example-projects/counter-demo/aws-cloudformation/cloudcomp-counter-demo.json
#	example-projects/tug-of-war-in-the-clouds/stop.py
#	example-projects/turnserver/aws-boto3/start.py
#	example-projects/turnserver/aws-boto3/stop.py
master
Sebastian Rieger 5 years ago
parent
commit
506b853e6f
  1. 11
      .idea/cloud-computing-msc-ai-examples.iml
  2. 7
      .idea/misc.xml
  3. 8
      .idea/modules.xml
  4. 6
      .idea/vcs.xml
  5. 206
      example-projects/tug-of-war-in-the-clouds/aws-boto3-rds-db/start.py
  6. 57
      example-projects/tug-of-war-in-the-clouds/aws-boto3-rds-db/stop.py
  7. 86
      example-projects/tug-of-war-in-the-clouds/aws-boto3-standalone-db/create-loadbalancer.py
  8. 70
      example-projects/tug-of-war-in-the-clouds/aws-boto3-standalone-db/start-and-add-new-target.py
  9. 28
      example-projects/tug-of-war-in-the-clouds/aws-boto3-standalone-db/start.py
  10. 24
      example-projects/tug-of-war-in-the-clouds/aws-boto3-standalone-db/stop.py
  11. 101
      example-projects/tug-of-war-in-the-clouds/web-content/cloud.php
  12. 3
      example-projects/tug-of-war-in-the-clouds/web-content/config.php
  13. 36
      example-projects/tug-of-war-in-the-clouds/web-content/index.php

11
.idea/cloud-computing-msc-ai-examples.iml

@ -0,0 +1,11 @@
<?xml version="1.0" encoding="UTF-8"?>
<module type="PYTHON_MODULE" version="4">
<component name="NewModuleRootManager">
<content url="file://$MODULE_DIR$" />
<orderEntry type="inheritedJdk" />
<orderEntry type="sourceFolder" forTests="false" />
</component>
<component name="TestRunnerService">
<option name="PROJECT_TEST_RUNNER" value="Unittests" />
</component>
</module>

7
.idea/misc.xml

@ -0,0 +1,7 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="JavaScriptSettings">
<option name="languageLevel" value="ES6" />
</component>
<component name="ProjectRootManager" version="2" project-jdk-name="Python 3.6" project-jdk-type="Python SDK" />
</project>

8
.idea/modules.xml

@ -0,0 +1,8 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/.idea/cloud-computing-msc-ai-examples.iml" filepath="$PROJECT_DIR$/.idea/cloud-computing-msc-ai-examples.iml" />
</modules>
</component>
</project>

6
.idea/vcs.xml

@ -0,0 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="$PROJECT_DIR$" vcs="Git" />
</component>
</project>

206
example-projects/tug-of-war-in-the-clouds/aws-boto3-rds-db/start.py

@ -0,0 +1,206 @@
import boto3
from botocore.exceptions import ClientError
region = 'eu-central-1'
availabilityZone = 'eu-central-1b'
imageId = 'ami-0cc293023f983ed53'
instanceType = 't3.nano'
keyName = 'srieger-pub'
#userDataDB = ('#!/bin/bash\n'
# '#!/bin/bash\n'
# '# extra repo for RedHat rpms\n'
# 'yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm\n'
# '# essential tools\n'
# 'yum install -y joe htop git\n'
# '# mysql\n'
# 'yum install -y mariadb mariadb-server\n'
# '\n'
# 'service mariadb start\n'
# '\n'
# 'echo "create database cloud_tug_of_war" | mysql -u root\n'
# '\n'
# 'echo "create table clouds ( cloud_id INT AUTO_INCREMENT, name VARCHAR(255) NOT NULL, value INT, max_value INT, PRIMARY KEY (cloud_id))" | mysql -u root cloud_tug_of_war\n'
# '\n'
# 'echo "CREATE USER \'cloud_tug_of_war\'@\'%\' IDENTIFIED BY \'cloud\';" | mysql -u root\n'
# 'echo "GRANT ALL PRIVILEGES ON cloud_tug_of_war.* TO \'cloud_tug_of_war\'@\'%\';" | mysql -u root\n'
# 'echo "FLUSH PRIVILEGES" | mysql -u root\n'
# )
# convert with: cat install-mysql | sed "s/^/'/; s/$/\\\n'/"
client = boto3.setup_default_session(region_name=region)
ec2Client = boto3.client("ec2")
ec2Resource = boto3.resource('ec2')
rdsClient = boto3.client("rds")
response = ec2Client.describe_vpcs()
vpc_id = response.get('Vpcs', [{}])[0].get('VpcId', '')
subnet_id = ec2Client.describe_subnets(
Filters=[
{
'Name': 'availability-zone', 'Values': [availabilityZone]
}
])['Subnets'][0]['SubnetId']
print("Deleting old instance...")
print("------------------------------------")
response = ec2Client.describe_instances(Filters=[{'Name': 'tag-key', 'Values': ['tug-of-war']}])
print(response)
reservations = response['Reservations']
for reservation in reservations:
for instance in reservation['Instances']:
if instance['State']['Name'] == "running" or instance['State']['Name'] == "pending":
response = ec2Client.terminate_instances(InstanceIds=[instance['InstanceId']])
print(response)
instanceToTerminate = ec2Resource.Instance(instance['InstanceId'])
instanceToTerminate.wait_until_terminated()
print("Deleting old DB instance...")
print("------------------------------------")
try:
response = rdsClient.delete_db_instance(
DBInstanceIdentifier='tug-of-war-db1',
SkipFinalSnapshot=True,
DeleteAutomatedBackups=True
)
except ClientError as e:
print(e)
waiter = rdsClient.get_waiter('db_instance_deleted')
waiter.wait(DBInstanceIdentifier='tug-of-war-db1')
print("Delete old security group...")
print("------------------------------------")
try:
response = ec2Client.delete_security_group(GroupName='tug-of-war')
except ClientError as e:
print(e)
print("Create security group...")
print("------------------------------------")
try:
response = ec2Client.create_security_group(GroupName='tug-of-war',
Description='tug-of-war',
VpcId=vpc_id)
security_group_id = response['GroupId']
print('Security Group Created %s in vpc %s.' % (security_group_id, vpc_id))
data = ec2Client.authorize_security_group_ingress(
GroupId=security_group_id,
IpPermissions=[
{'IpProtocol': 'tcp',
'FromPort': 3306,
'ToPort': 3306,
'IpRanges': [{'CidrIp': '0.0.0.0/0'}]},
{'IpProtocol': 'tcp',
'FromPort': 22,
'ToPort': 22,
'IpRanges': [{'CidrIp': '0.0.0.0/0'}]},
{'IpProtocol': 'tcp',
'FromPort': 80,
'ToPort': 80,
'IpRanges': [{'CidrIp': '0.0.0.0/0'}]},
{'IpProtocol': 'tcp',
'FromPort': 443,
'ToPort': 443,
'IpRanges': [{'CidrIp': '0.0.0.0/0'}]}
])
print('Ingress Successfully Set %s' % data)
except ClientError as e:
print(e)
print("Running new DB instance...")
print("------------------------------------")
response = rdsClient.create_db_instance(DBInstanceIdentifier="tug-of-war-db1",
AllocatedStorage=20,
DBName='tug_of_war',
# Engine='mariadb',
Engine='mysql',
# General purpose SSD
StorageType='gp2',
#StorageEncrypted=True,
AutoMinorVersionUpgrade=True,
# Set this to true later?
MultiAZ=False,
MasterUsername='cloud_tug_of_war',
MasterUserPassword='cloudcloud',
VpcSecurityGroupIds=[security_group_id],
#DBInstanceClass='db.m3.2xlarge',
DBInstanceClass='db.t3.micro',
Tags=[
{'Key': 'Name', 'Value': 'tug-of-war-db1'},
{'Key': 'tug-of-war', 'Value': 'db'}
],
)
waiter = rdsClient.get_waiter('db_instance_available')
waiter.wait(DBInstanceIdentifier='tug-of-war-db1')
#dbArn = response['DBInstance'][0]['DBInstanceArn']
dbEndpointAddress = response['DBInstance'][0]['Endpoint']['Address']
dbEndpointPort = response['DBInstance'][0]['Endpoint']['Port']
print(dbEndpointAddress + ":" + dbEndpointPort)
userDataWebServer = ('#!/bin/bash\n'
'# extra repo for RedHat rpms\n'
'yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm\n'
'# essential tools\n'
'yum install -y joe htop git\n'
'# mysql\n'
'yum install -y httpd php php-mysql\n'
'\n'
'service httpd start\n'
'\n'
'wget http://mmnet.informatik.hs-fulda.de/cloudcomp/tug-of-war-in-the-clouds.tar.gz\n'
'cp tug-of-war-in-the-clouds.tar.gz /var/www/html/\n'
'cd /var/www/html\n'
'tar zxvf tug-of-war-in-the-clouds.tar.gz\n'
'\n'
'# change hostname of db connection\n'
'sed -i s/localhost/' + dbEndpointAddress + '/g /var/www/html/config.php\n'
'sed -i s/\\\'cloud\\\'/cloudcloud/g /var/www/html/config.php\n'
)
for i in range(1, 2):
print("Running new Web Server instance...")
print("------------------------------------")
response = ec2Client.run_instances(
ImageId=imageId,
InstanceType=instanceType,
Placement={'AvailabilityZone': availabilityZone, },
KeyName=keyName,
MinCount=1,
MaxCount=1,
UserData=userDataWebServer,
SecurityGroupIds=[
security_group_id,
],
TagSpecifications=[
{
'ResourceType': 'instance',
'Tags': [
{'Key': 'Name', 'Value': 'tug-of-war-webserver' + i},
{'Key': 'tug-of-war', 'Value': 'webserver'}
],
}
],
)
instanceIdWeb = response['Instances'][0]['InstanceId']
instance = ec2Resource.Instance(instanceIdWeb)
instance.wait_until_running()
instance.load()
print("tug-of-war-in-the-clouds can be accessed at: " + instance.public_ip_address)

57
example-projects/tug-of-war-in-the-clouds/aws-boto3-rds-db/stop.py

@ -0,0 +1,57 @@
import time
import boto3
from botocore.exceptions import ClientError
region = 'eu-central-1'
client = boto3.setup_default_session(region_name=region)
ec2Client = boto3.client("ec2")
ec2Resource = boto3.resource('ec2')
response = ec2Client.describe_vpcs()
vpc_id = response.get('Vpcs', [{}])[0].get('VpcId', '')
elbv2Client = boto3.client('elbv2')
print("Deleting load balancer and deps...")
print("------------------------------------")
try:
response = elbv2Client.describe_load_balancers(Names=['tug-of-war-loadbalancer'])
loadbalancer_arn = response.get('LoadBalancers', [{}])[0].get('LoadBalancerArn', '')
response = elbv2Client.delete_load_balancer(LoadBalancerArn=loadbalancer_arn)
except ClientError as e:
print(e)
time.sleep(5)
try:
response = elbv2Client.describe_target_groups(Names=['tug-of-war-targetgroup'])
targetgroup_arn = response.get('TargetGroups', [{}])[0].get('TargetGroupArn', '')
response = elbv2Client.delete_target_group(TargetGroupArn=targetgroup_arn)
except ClientError as e:
print(e)
print("Deleting old instance...")
print("------------------------------------")
response = ec2Client.describe_instances(Filters=[{'Name': 'tag-key', 'Values': ['tug-of-war']}])
print(response)
reservations = response['Reservations']
for reservation in reservations:
for instance in reservation['Instances']:
if instance['State']['Name'] == "running" or instance['State']['Name'] == "pending":
response = ec2Client.terminate_instances(InstanceIds=[instance['InstanceId']])
print(response)
instanceToTerminate = ec2Resource.Instance(instance['InstanceId'])
instanceToTerminate.wait_until_terminated()
print("Delete old security group...")
print("------------------------------------")
try:
response = ec2Client.delete_security_group(GroupName='tug-of-war')
except ClientError as e:
print(e)

86
example-projects/tug-of-war-in-the-clouds/aws-boto3-standalone-db/create-loadbalancer.py

@ -0,0 +1,86 @@
import boto3
from botocore.exceptions import ClientError
region = 'eu-central-1'
availabilityZone = 'eu-central-1b'
subnet1 = 'subnet-41422b28'
subnet2 = 'subnet-5c5f6d16'
subnet3 = 'subnet-6f2ea214'
client = boto3.setup_default_session(region_name=region)
ec2Client = boto3.client("ec2")
ec2Resource = boto3.resource('ec2')
response = ec2Client.describe_vpcs()
vpc_id = response.get('Vpcs', [{}])[0].get('VpcId', '')
response = ec2Client.describe_security_groups(Filters=[{'Name': 'group-name', 'Values': ['tug-of-war']}])
security_group_id = response.get('SecurityGroups', [{}])[0].get('GroupId', '')
elbv2Client = boto3.client('elbv2')
response = elbv2Client.create_load_balancer(
Name='tug-of-war-loadbalancer',
Subnets=[
subnet1,
subnet2,
subnet3,
],
SecurityGroups=[
security_group_id
]
)
loadbalancer_arn = response.get('LoadBalancers', [{}])[0].get('LoadBalancerArn', '')
loadbalancer_dns = response.get('LoadBalancers', [{}])[0].get('DNSName', '')
response = elbv2Client.create_target_group(
Name='tug-of-war-targetgroup',
Port=80,
Protocol='HTTP',
VpcId=vpc_id,
)
targetgroup_arn = response.get('TargetGroups', [{}])[0].get('TargetGroupArn', '')
response = elbv2Client.create_listener(
DefaultActions=[
{
'TargetGroupArn': targetgroup_arn,
'Type': 'forward',
},
],
LoadBalancerArn=loadbalancer_arn,
Port=80,
Protocol='HTTP',
)
response = elbv2Client.modify_target_group_attributes(
TargetGroupArn=targetgroup_arn,
Attributes=[
{
'Key': 'stickiness.enabled',
'Value': 'true'
},
]
)
print("Registering instances...")
print("------------------------------------")
response = ec2Client.describe_instances(Filters=[{'Name': 'tag:tug-of-war', 'Values': ['webserver']}])
print(response)
reservations = response['Reservations']
for reservation in reservations:
for instance in reservation['Instances']:
if instance['State']['Name'] == "running" or instance['State']['Name'] == "pending":
response = elbv2Client.register_targets(
TargetGroupArn=targetgroup_arn,
Targets=[
{
'Id': instance['InstanceId'],
},
],
)
print('Load Balancer should be reachable at: ' + loadbalancer_dns)

70
example-projects/tug-of-war-in-the-clouds/aws-boto3-standalone-db/start-and-add-new-target.py

@ -0,0 +1,70 @@
import boto3
from botocore.exceptions import ClientError
region = 'eu-central-1'
availabilityZone = 'eu-central-1b'
subnet1 = 'subnet-41422b28'
subnet2 = 'subnet-5c5f6d16'
subnet3 = 'subnet-6f2ea214'
client = boto3.setup_default_session(region_name=region)
ec2Client = boto3.client("ec2")
ec2Resource = boto3.resource('ec2')
response = ec2Client.describe_vpcs()
vpc_id = response.get('Vpcs', [{}])[0].get('VpcId', '')
elbv2Client = boto3.client('elbv2')
for i in range(3, 4):
print("Running new Web Server instance...")
print("------------------------------------")
response = ec2Client.run_instances(
ImageId=imageId,
InstanceType=instanceType,
Placement={'AvailabilityZone': availabilityZone, },
KeyName=keyName,
MinCount=1,
MaxCount=1,
UserData=userDataWebServer,
SecurityGroupIds=[
security_group_id,
],
TagSpecifications=[
{
'ResourceType': 'instance',
'Tags': [
{'Key': 'Name', 'Value': 'tug-of-war-webserver1'},
{'Key': 'tug-of-war', 'Value': 'webserver'}
],
}
],
)
instanceIdWeb = response['Instances'][0]['InstanceId']
instance = ec2Resource.Instance(instanceIdWeb)
instance.wait_until_running()
instance.load()
print("tug-of-war-in-the-clouds can be accessed at: " + instance.public_ip_address)
try:
response = elbv2Client.describe_target_groups(Names=['tug-of-war-targetgroup'])
targetgroup_arn = response.get('TargetGroups', [{}])[0].get('TargetGroupArn', '')
except ClientError as e:
print(e)
print("Registering instance...")
print("------------------------------------")
response = elbv2Client.register_targets(
TargetGroupArn=targetgroup_arn,
Targets=[
{
'Id': instanceIdWeb,
},
],
)

28
example-projects/tug-of-war-in-the-clouds/aws-boto3-standalone-db/start.py

@ -116,7 +116,7 @@ response = ec2Client.run_instances(
'ResourceType': 'instance',
'Tags': [
{'Key': 'Name', 'Value': 'tug-of-war-db1'},
{'Key': 'tug-of-war', 'Value': 'installed'}
{'Key': 'tug-of-war', 'Value': 'db'}
],
}
],
@ -124,7 +124,7 @@ response = ec2Client.run_instances(
instanceIdDB = response['Instances'][0]['InstanceId']
privateIpDB = response['Instances'][0]['PrivateIpAddress']
#privateIpDB = response['Instances'][0]['NetworkInterfaces'][0]['NetworkInterfaceId']
# privateIpDB = response['Instances'][0]['NetworkInterfaces'][0]['NetworkInterfaceId']
instance = ec2Resource.Instance(instanceIdDB)
instance.wait_until_running()
@ -150,10 +150,11 @@ userDataWebServer = ('#!/bin/bash\n'
'sed -i s/localhost/' + privateIpDB + '/g /var/www/html/config.php\n'
)
print("Running new Web Server instance...")
print("------------------------------------")
for i in range(1, 3):
print("Running new Web Server instance...")
print("------------------------------------")
response = ec2Client.run_instances(
response = ec2Client.run_instances(
ImageId=imageId,
InstanceType=instanceType,
Placement={'AvailabilityZone': availabilityZone, },
@ -169,16 +170,17 @@ response = ec2Client.run_instances(
{
'ResourceType': 'instance',
'Tags': [
{'Key': 'Name', 'Value': 'tug-of-war-webserver1'},
{'Key': 'tug-of-war', 'Value': 'installed'}
{'Key': 'Name', 'Value': 'tug-of-war-webserver' + i},
{'Key': 'tug-of-war', 'Value': 'webserver'}
],
}
],
)
)
instanceIdDB = response['Instances'][0]['InstanceId']
privateIpDB = response['Instances'][0]['PrivateIpAddress']
#privateIpDB = response['Instances'][0]['NetworkInterfaces'][0]['NetworkInterfaceId']
instanceIdWeb = response['Instances'][0]['InstanceId']
instance = ec2Resource.Instance(instanceIdDB)
instance.wait_until_running()
instance = ec2Resource.Instance(instanceIdWeb)
instance.wait_until_running()
instance.load()
print("tug-of-war-in-the-clouds can be accessed at: " + instance.public_ip_address)

24
example-projects/tug-of-war-in-the-clouds/aws-boto3-standalone-db/stop.py

@ -1,3 +1,4 @@
import time
import boto3
from botocore.exceptions import ClientError
@ -10,6 +11,29 @@ ec2Resource = boto3.resource('ec2')
response = ec2Client.describe_vpcs()
vpc_id = response.get('Vpcs', [{}])[0].get('VpcId', '')
elbv2Client = boto3.client('elbv2')
print("Deleting load balancer and deps...")
print("------------------------------------")
try:
response = elbv2Client.describe_load_balancers(Names=['tug-of-war-loadbalancer'])
loadbalancer_arn = response.get('LoadBalancers', [{}])[0].get('LoadBalancerArn', '')
response = elbv2Client.delete_load_balancer(LoadBalancerArn=loadbalancer_arn)
except ClientError as e:
print(e)
time.sleep(5)
try:
response = elbv2Client.describe_target_groups(Names=['tug-of-war-targetgroup'])
targetgroup_arn = response.get('TargetGroups', [{}])[0].get('TargetGroupArn', '')
response = elbv2Client.delete_target_group(TargetGroupArn=targetgroup_arn)
except ClientError as e:
print(e)
print("Deleting old instance...")
print("------------------------------------")

101
example-projects/tug-of-war-in-the-clouds/web-content/cloud.php

@ -0,0 +1,101 @@
<?php
session_start();
include 'config.php';
?>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
<?php
if (!isset($_SESSION["team"]))
{
if (isset($_POST["team_minus"]))
{
print "You joined team minus (blue)...";
$_SESSION["team"]="minus";
}
elseif (isset($_POST["team_plus"]))
{
print "You joined team minus (green)...";
$_SESSION["team"]="plus";
}
else
{
print "<h1>Choose your team!</h1>";
?>
<form action="" method="post">
<input type="submit" name="team_minus" value="Team Minus (Blue)">
<input type="submit" name="team_plus" value="Team Plus (Green)">
</form>
<?php
}
}
if (isset($_SESSION["team"]))
{
?>
<h1>Pull!!!</h1>
<p>
<?php
if (isset($_GET['cloud_id']))
{
$sql = "SELECT * FROM clouds WHERE cloud_id = " . $_GET['cloud_id'];
foreach ($pdo->query($sql) as $row)
{
if (abs(intval($row["value"])) >= intval($row["max_value"]))
{
unset($_SESSION["team"]);
$_SESSION["finished"] = true;
}
}
if (isset($_POST['pull']))
{
if ($_SESSION["team"] == "plus")
{
print "You pulled for team plus (green)...";
$sql = "UPDATE clouds SET value=value+1 WHERE cloud_id = " . $_GET['cloud_id'];
$result = $pdo->query($sql);
}
if ($_SESSION["team"] == "minus")
{
print "You pulled for team minus (blue)...";
$sql = "UPDATE clouds SET value=value-1 WHERE cloud_id = " . $_GET['cloud_id'];
$result = $pdo->query($sql);
}
}
$sql = "SELECT * FROM clouds WHERE cloud_id = " . $_GET['cloud_id'];
foreach ($pdo->query($sql) as $row)
{
print "<h2>Value: " . $row["value"] . " (Goal: " . $row["max_value"] . ")</h2>";
}
if (!isset($_SESSION["finished"]))
{
?>
<form action="" method="post">
<input type="submit" name="pull" value="Pull">
</form>
<?php
}
else
{
print "<h2>game over</h2>";
if (intval($row["value"] == intval($row["max_value"])))
{
print "Team plus (green) won!";
}
else
{
print "Team minus (blue) won!";
}
session_destroy();
}
}
}
?>
<br />
<a href='index.php'>Leave Game</a>

3
example-projects/tug-of-war-in-the-clouds/web-content/config.php

@ -0,0 +1,3 @@
<?php
$pdo = new PDO('mysql:host=localhost;dbname=cloud_tug_of_war', 'cloud_tug_of_war', 'cloud');
?>

36
example-projects/tug-of-war-in-the-clouds/web-content/index.php

@ -0,0 +1,36 @@
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
<h1>Welcome to "tug of war in the clouds"!</h1>
<p>
Choose and tug a cloud:
</p>
<p>
<?php
include 'config.php';
if (isset($_POST['new_cloud_name']))
{
$sql = "INSERT INTO clouds (name, value, max_value) VALUES ('" . $_POST['new_cloud_name'] . "',0," . $_POST['new_cloud_goal'] . ")";
$pdo->query($sql);
}
$sql = "SELECT * FROM clouds";
foreach ($pdo->query($sql) as $row) {
if (abs(intval($row['value'])) < intval($row['max_value']))
{
echo "<a href='cloud.php?cloud_id=" . $row['cloud_id'] . "'>" . $row['name'] . "</a> (score: " . $row['value'] . ", goal:" . $row['max_value'] . ")<br />";
}
}
?>
<!-- list -->
</p>
<p>
or form a new cloud:
<form action="" method="post">
Name: <input name="new_cloud_name" value="">
Goal: <input name="new_cloud_goal" value="10">
<input type="submit" value="Create">
</form>
</p>
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