AWS Secrets Manager
Since Camel 3.9
Only producer is supported
The AWS Secrets Manager component supports AWS Secrets Manager service.
Prerequisites
You must have a valid Amazon Web Services developer account, and be signed up to use Amazon Secrets Manager. More information is available at AWS Secrets Manager.
URI Format
aws-secrets-manager://label[?options]
You can append query options to the URI in the following format:
?options=value&option2=value&…
Configuring Options
Camel components are configured on two separate levels:
-
component level
-
endpoint level
Configuring Component Options
At the component level, you set general and shared configurations that are, then, inherited by the endpoints. It is the highest configuration level.
For example, a component may have security settings, credentials for authentication, urls for network connection and so forth.
Some components only have a few options, and others may have many. Because components typically have pre-configured defaults that are commonly used, then you may often only need to configure a few options on a component; or none at all.
You can configure components using:
-
the Component DSL.
-
in a configuration file (
application.properties
,*.yaml
files, etc). -
directly in the Java code.
Configuring Endpoint Options
You usually spend more time setting up endpoints because they have many options. These options help you customize what you want the endpoint to do. The options are also categorized into whether the endpoint is used as a consumer (from), as a producer (to), or both.
Configuring endpoints is most often done directly in the endpoint URI as path and query parameters. You can also use the Endpoint DSL and DataFormat DSL as a type safe way of configuring endpoints and data formats in Java.
A good practice when configuring options is to use Property Placeholders.
Property placeholders provide a few benefits:
-
They help prevent using hardcoded urls, port numbers, sensitive information, and other settings.
-
They allow externalizing the configuration from the code.
-
They help the code to become more flexible and reusable.
The following two sections list all the options, firstly for the component followed by the endpoint.
Component Options
The AWS Secrets Manager component supports 23 options, which are listed below.
Name | Description | Default | Type |
---|---|---|---|
Set if the secret is binary or not. | false | boolean | |
Component configuration. | SecretsManagerConfiguration | ||
Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing. | false | boolean | |
Required The operation to perform. Enum values:
| SecretsManagerOperations | ||
Set the need for overriding the endpoint. This option needs to be used in combination with the uriEndpointOverride option. | false | boolean | |
If we want to use a POJO request as body or not. | false | boolean | |
If using a profile credentials provider, this parameter will set the profile name. | String | ||
The region in which a Secrets Manager client needs to work. When using this parameter, the configuration will expect the lowercase name of the region (for example, ap-east-1) You’ll need to use the name Region.EU_WEST_1.id(). Enum values:
| String | ||
Set the overriding uri endpoint. This option needs to be used in combination with overrideEndpoint option. | String | ||
Set whether the Secrets Manager client should expect to load credentials through a profile credentials provider. | false | boolean | |
Whether autowiring is enabled. This is used for automatic autowiring options (the option must be marked as autowired) by looking up in the registry to find if there is a single instance of matching type, which then gets configured on the component. This can be used for automatic configuring JDBC data sources, JMS connection factories, AWS Clients, etc. | true | boolean | |
Autowired To use an existing configured AWS Secrets Manager client. | SecretsManagerClient | ||
Used for enabling or disabling all consumer based health checks from this component. | true | boolean | |
Used for enabling or disabling all producer based health checks from this component. Notice: Camel has by default disabled all producer based health-checks. You can turn on producer checks globally by setting camel.health.producersEnabled=true. | true | boolean | |
To define a proxy host when instantiating the Secrets Manager client. | String | ||
To define a proxy port when instantiating the Secrets Manager client. | Integer | ||
To define a proxy protocol when instantiating the Secrets Manager client. Enum values:
| HTTPS | Protocol | |
Amazon AWS Access Key. | String | ||
Amazon AWS Secret Key. | String | ||
Amazon AWS Session Token used when the user needs to assume an IAM role. | String | ||
If we want to trust all certificates in case of overriding the endpoint. | false | boolean | |
Set whether the Translate client should expect to load credentials through a default credentials provider or to expect static credentials to be passed in. | false | boolean | |
Set whether the Secrets Manager client should expect to use Session Credentials. This is useful in a situation in which the user needs to assume an IAM role for doing operations in Secrets Manager. | false | boolean |
Endpoint Options
The AWS Secrets Manager endpoint is configured using URI syntax:
aws-secrets-manager:label
With the following path and query parameters:
Query Parameters (19 parameters)
Name | Description | Default | Type |
---|---|---|---|
Set if the secret is binary or not. | false | boolean | |
Required The operation to perform. Enum values:
| SecretsManagerOperations | ||
Set the need for overriding the endpoint. This option needs to be used in combination with the uriEndpointOverride option. | false | boolean | |
If we want to use a POJO request as body or not. | false | boolean | |
If using a profile credentials provider, this parameter will set the profile name. | String | ||
The region in which a Secrets Manager client needs to work. When using this parameter, the configuration will expect the lowercase name of the region (for example, ap-east-1) You’ll need to use the name Region.EU_WEST_1.id(). Enum values:
| String | ||
Set the overriding uri endpoint. This option needs to be used in combination with overrideEndpoint option. | String | ||
Set whether the Secrets Manager client should expect to load credentials through a profile credentials provider. | false | boolean | |
Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing. | false | boolean | |
Autowired To use an existing configured AWS Secrets Manager client. | SecretsManagerClient | ||
To define a proxy host when instantiating the Secrets Manager client. | String | ||
To define a proxy port when instantiating the Secrets Manager client. | Integer | ||
To define a proxy protocol when instantiating the Secrets Manager client. Enum values:
| HTTPS | Protocol | |
Amazon AWS Access Key. | String | ||
Amazon AWS Secret Key. | String | ||
Amazon AWS Session Token used when the user needs to assume an IAM role. | String | ||
If we want to trust all certificates in case of overriding the endpoint. | false | boolean | |
Set whether the Translate client should expect to load credentials through a default credentials provider or to expect static credentials to be passed in. | false | boolean | |
Set whether the Secrets Manager client should expect to use Session Credentials. This is useful in a situation in which the user needs to assume an IAM role for doing operations in Secrets Manager. | false | boolean |
Static credentials, Default Credential Provider and Profile Credentials Provider
You have the possibility of avoiding the usage of explicit static credentials by specifying the useDefaultCredentialsProvider option and set it to true.
The order of evaluation for Default Credentials Provider is the following:
-
Java system properties -
aws.accessKeyId
andaws.secretKey
. -
Environment variables -
AWS_ACCESS_KEY_ID
andAWS_SECRET_ACCESS_KEY
. -
Web Identity Token from AWS STS.
-
The shared credentials and config files.
-
Amazon ECS container credentials - loaded from the Amazon ECS if the environment variable
AWS_CONTAINER_CREDENTIALS_RELATIVE_URI
is set. -
Amazon EC2 Instance profile credentials.
You have also the possibility of using Profile Credentials Provider, by specifying the useProfileCredentialsProvider option to true and profileCredentialsName to the profile name.
Only one of static, default and profile credentials could be used at the same time.
For more information about this you can look at AWS credentials documentation
Using AWS Secrets Manager Property Function
To use this function, you’ll need to provide credentials to AWS Secrets Manager Service as environment variables:
export CAMEL_VAULT_AWS_ACCESS_KEY=accessKey
export CAMEL_VAULT_AWS_SECRET_KEY=secretKey
export CAMEL_VAULT_AWS_REGION=region
You can also configure the credentials in the application.properties
file such as:
camel.vault.aws.accessKey = accessKey
camel.vault.aws.secretKey = secretKey
camel.vault.aws.region = region
If you want instead to use the AWS default credentials provider, you’ll need to provide the following env variables:
export CAMEL_VAULT_AWS_USE_DEFAULT_CREDENTIALS_PROVIDER=true
export CAMEL_VAULT_AWS_REGION=region
You can also configure the credentials in the application.properties
file such as:
camel.vault.aws.defaultCredentialsProvider = true
camel.vault.aws.region = region
It is also possible to specify a particular profile name for accessing AWS Secrets Manager
export CAMEL_VAULT_AWS_USE_PROFILE_CREDENTIALS_PROVIDER=true
export CAMEL_VAULT_AWS_PROFILE_NAME=test-account
export CAMEL_VAULT_AWS_REGION=region
You can also configure the credentials in the application.properties
file such as:
camel.vault.aws.profileCredentialsProvider = true
camel.vault.aws.profileName = test-account
camel.vault.aws.region = region
camel.vault.aws configuration only applies to the AWS Secrets Manager properties function (E.g when resolving properties). When using the operation option to create, get, list secrets etc., you should provide the usual options for connecting to AWS Services. |
At this point, you’ll be able to reference a property in the following way:
<camelContext>
<route>
<from uri="direct:start"/>
<to uri="{{aws:route}}"/>
</route>
</camelContext>
Where route will be the name of the secret stored in the AWS Secrets Manager Service.
You could specify a default value in case the secret is not present on AWS Secret Manager:
<camelContext>
<route>
<from uri="direct:start"/>
<to uri="{{aws:route:default}}"/>
</route>
</camelContext>
In this case, if the secret doesn’t exist, the property will fall back to "default" as value.
Also, you are able to get a particular field of the secret, if you have, for example, a secret named database of this form:
{
"username": "admin",
"password": "password123",
"engine": "postgres",
"host": "127.0.0.1",
"port": "3128",
"dbname": "db"
}
You’re able to do get single secret value in your route, like for example:
<camelContext>
<route>
<from uri="direct:start"/>
<log message="Username is {{aws:database/username}}"/>
</route>
</camelContext>
Or re-use the property as part of an endpoint.
You could specify a default value in case the particular field of secret is not present on AWS Secret Manager:
<camelContext>
<route>
<from uri="direct:start"/>
<log message="Username is {{aws:database/username:admin}}"/>
</route>
</camelContext>
In this case, if the secret doesn’t exist or the secret exists, but the username field is not part of the secret, the property will fall back to "admin" as value.
There is also the syntax to get a particular version of the secret for both the approach, with field/default value specified or only with secret:
<camelContext>
<route>
<from uri="direct:start"/>
<to uri="{{aws:route@bf9b4f4b-8e63-43fd-a73c-3e2d3748b451}}"/>
</route>
</camelContext>
This approach will return the RAW route secret with the version 'bf9b4f4b-8e63-43fd-a73c-3e2d3748b451'.
<camelContext>
<route>
<from uri="direct:start"/>
<to uri="{{aws:route:default@bf9b4f4b-8e63-43fd-a73c-3e2d3748b451}}"/>
</route>
</camelContext>
This approach will return the route secret value with version 'bf9b4f4b-8e63-43fd-a73c-3e2d3748b451' or default value in case the secret doesn’t exist or the version doesn’t exist.
<camelContext>
<route>
<from uri="direct:start"/>
<log message="Username is {{aws:database/username:admin@bf9b4f4b-8e63-43fd-a73c-3e2d3748b451}}"/>
</route>
</camelContext>
This approach will return the username field of the database secret with version 'bf9b4f4b-8e63-43fd-a73c-3e2d3748b451' or admin in case the secret doesn’t exist or the version doesn’t exist.
For the moment we are not considering the rotation function if any are applied, but it is in the work to be done.
The only requirement is adding the camel-aws-secrets-manager jar to your Camel application.
Automatic Camel context reloading on Secret Refresh
Being able to reload Camel context on a Secret Refresh could be done by specifying the usual credentials (the same used for AWS Secret Manager Property Function).
With Environment variables:
export CAMEL_VAULT_AWS_USE_DEFAULT_CREDENTIALS_PROVIDER=accessKey
export CAMEL_VAULT_AWS_REGION=region
or as plain Camel main properties:
camel.vault.aws.useDefaultCredentialProvider = true
camel.vault.aws.region = region
Or by specifying accessKey/SecretKey and region, instead of using the default credentials provider chain.
To enable the automatic refresh, you’ll need additional properties to set:
camel.vault.aws.refreshEnabled=true
camel.vault.aws.refreshPeriod=60000
camel.vault.aws.secrets=Secret
camel.main.context-reload-enabled = true
where camel.vault.aws.refreshEnabled
will enable the automatic context reload, camel.vault.aws.refreshPeriod
is the interval of time between two different checks for update events and camel.vault.aws.secrets
is a regex representing the secrets we want to track for updates.
Note that camel.vault.aws.secrets
is not mandatory: if not specified the task responsible for checking updates events will take into accounts or the properties with an aws:
prefix.
Automatic Camel context reloading on Secret Refresh with Eventbridge and AWS SQS Services
Another option is to use AWS EventBridge in conjunction with the AWS SQS service.
On the AWS side, the following resources need to be created:
-
an AWS Couldtrail trail
-
an AWS SQS Queue
-
an Eventbridge rule of the following kind
{
"source": ["aws.secretsmanager"],
"detail-type": ["AWS API Call via CloudTrail"],
"detail": {
"eventSource": ["secretsmanager.amazonaws.com"]
}
}
This rule will make the event related to AWS Secrets Manager filtered
-
You need to set the a Rule target to the AWS SQS Queue for Eventbridge rule
-
You need to give permission to the Eventbrige rule, to write on the above SQS Queue. For doing this you’ll need to define a json file like this:
{
"Policy": "{\"Version\":\"2012-10-17\",\"Id\":\"<queue_arn>/SQSDefaultPolicy\",\"Statement\":[{\"Sid\": \"EventsToMyQueue\", \"Effect\": \"Allow\", \"Principal\": {\"Service\": \"events.amazonaws.com\"}, \"Action\": \"sqs:SendMessage\", \"Resource\": \"<queue_arn>\", \"Condition\": {\"ArnEquals\": {\"aws:SourceArn\": \"<eventbridge_rule_arn>\"}}}]}"
}
Change the values for queue_arn and eventbridge_rule_arn, save the file with policy.json name and run the following command with AWS CLI
aws sqs set-queue-attributes --queue-url <queue_url> --attributes file://policy.json
where queue_url is the AWS SQS Queue URL of the just created Queue.
Now you should be able to set up the configuration on the Camel side. To enable the SQS notification add the following properties:
camel.vault.aws.refreshEnabled=true
camel.vault.aws.refreshPeriod=60000
camel.vault.aws.secrets=Secret
camel.main.context-reload-enabled = true
camel.vault.aws.useSqsNotification=true
camel.vault.aws.sqsQueueUrl=<queue_url>
where queue_url is the AWS SQS Queue URL of the just created Queue.
Whenever an event of PutSecretValue for the Secret named 'Secret' will happen, a message will be enqueued in the AWS SQS Queue and consumed on the Camel side and a context reload will be triggered.
Message Headers
The AWS Secrets Manager component supports 8 message header(s), which is/are listed below:
Name | Description | Default | Type |
---|---|---|---|
CamelAwsSecretsManagerOperation (producer) Constant: | The operation we want to perform. | String | |
CamelAwsSecretsManagerMaxResults (producer) Constant: | The number of results to include in the response. | Integer | |
CamelAwsSecretsManagerSecretName (producer) Constant: | The name of the secret. | String | |
CamelAwsSecretsManagerSecretDescription (producer) Constant: | The description of the secret. | String | |
CamelAwsSecretsManagerSecretId (producer) Constant: | The ARN or name of the secret. | String | |
CamelAwsSecretsManagerLambdaRotationFunctionArn (producer) Constant: | The ARN of the Lambda rotation function that can rotate the secret. | String | |
CamelAwsSecretsManagerSecretVersionId (producer) Constant: | The unique identifier of the version of the secret. | String | |
CamelAwsSecretsManagerSecretReplicationRegions (producer) Constant: | A comma separated list of Regions in which to replicate the secret. | String |
Dependencies
Maven users will need to add the following dependency to their pom.xml.
pom.xml
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-aws-secrets-manager</artifactId>
<version>${camel-version}</version>
</dependency>
where ${camel-version}
must be replaced by the actual version of Camel.
Spring Boot Auto-Configuration
When using aws-secrets-manager with Spring Boot make sure to use the following Maven dependency to have support for auto configuration:
<dependency>
<groupId>org.apache.camel.springboot</groupId>
<artifactId>camel-aws-secrets-manager-starter</artifactId>
<version>x.x.x</version>
<!-- use the same version as your Camel core version -->
</dependency>
The component supports 24 options, which are listed below.