1 /*
2  * Copyright 2013-2019 the original author or authors.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      https://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16
17 package org.springframework.cloud.aws.autoconfigure.context;
18
19 import com.amazonaws.auth.AWSCredentialsProvider;
20 import com.amazonaws.services.cloudformation.AmazonCloudFormation;
21 import com.amazonaws.services.cloudformation.AmazonCloudFormationClient;
22 import com.amazonaws.services.ec2.AmazonEC2;
23
24 import org.springframework.beans.factory.annotation.Autowired;
25 import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
26 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
27 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
28 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
29 import org.springframework.boot.context.properties.EnableConfigurationProperties;
30 import org.springframework.cloud.aws.autoconfigure.context.properties.AwsStackProperties;
31 import org.springframework.cloud.aws.context.annotation.ConditionalOnMissingAmazonClient;
32 import org.springframework.cloud.aws.context.config.annotation.ContextDefaultConfigurationRegistrar;
33 import org.springframework.cloud.aws.core.config.AmazonWebserviceClientFactoryBean;
34 import org.springframework.cloud.aws.core.env.stack.StackResourceRegistry;
35 import org.springframework.cloud.aws.core.env.stack.config.AutoDetectingStackNameProvider;
36 import org.springframework.cloud.aws.core.env.stack.config.StackNameProvider;
37 import org.springframework.cloud.aws.core.env.stack.config.StackResourceRegistryFactoryBean;
38 import org.springframework.cloud.aws.core.env.stack.config.StaticStackNameProvider;
39 import org.springframework.cloud.aws.core.region.RegionProvider;
40 import org.springframework.context.annotation.Bean;
41 import org.springframework.context.annotation.Configuration;
42 import org.springframework.context.annotation.Import;
43
44 /**
45  * @author Agim Emruli
46  * @author Maciej Walkowiak
47  */
48 @Configuration(proxyBeanMethods = false)
49 @Import({ ContextCredentialsAutoConfiguration.class,
50         ContextDefaultConfigurationRegistrar.class })
51 @ConditionalOnClass(name = "com.amazonaws.services.cloudformation.AmazonCloudFormation")
52 @EnableConfigurationProperties(AwsStackProperties.class)
53 public class ContextStackAutoConfiguration {
54
55     @Autowired
56     private AwsStackProperties properties;
57
58     @Autowired(required = false)
59     private AmazonEC2 amazonEC2;
60
61     @Autowired(required = false)
62     private RegionProvider regionProvider;
63
64     @Autowired(required = false)
65     private AWSCredentialsProvider credentialsProvider;
66
67     @Bean
68     @ConditionalOnMissingBean
69     @ConditionalOnProperty("cloud.aws.stack.name")
70     public StackNameProvider staticStackNameProvider() {
71         return new StaticStackNameProvider(properties.getName());
72     }
73
74     @Bean
75     @ConditionalOnMissingBean
76     @ConditionalOnProperty(name = "cloud.aws.stack.auto", havingValue = "true",
77             matchIfMissing = true)
78     public StackNameProvider autoDetectingStackNameProvider(
79             AmazonCloudFormation amazonCloudFormation) {
80         return new AutoDetectingStackNameProvider(amazonCloudFormation, this.amazonEC2);
81     }
82
83     @Bean
84     @ConditionalOnMissingBean(StackResourceRegistry.class)
85     @ConditionalOnBean(StackNameProvider.class)
86     public StackResourceRegistryFactoryBean stackResourceRegistryFactoryBean(
87             AmazonCloudFormation amazonCloudFormation,
88             StackNameProvider stackNameProvider) {
89         return new StackResourceRegistryFactoryBean(amazonCloudFormation,
90                 stackNameProvider);
91     }
92
93     @Bean
94     @ConditionalOnMissingAmazonClient(AmazonCloudFormation.class)
95     public AmazonWebserviceClientFactoryBean<AmazonCloudFormationClient> amazonCloudFormation() {
96         return new AmazonWebserviceClientFactoryBean<>(AmazonCloudFormationClient.class,
97                 this.credentialsProvider, this.regionProvider);
98     }
99
100 }
101