FetchAzureBlobStorage

Description:

Retrieves contents of an Azure Storage Blob, writing the contents to the content of the FlowFile

Tags:

azure, microsoft, cloud, storage, blob

Properties:

In the list below, the names of required properties appear in bold. Any other properties (not in bold) are considered optional. The table also indicates any default values, whether a property supports the NiFi Expression Language, and whether a property is considered "sensitive", meaning that its value will be encrypted. Before entering a value in a sensitive property, ensure that the nifi.properties file has an entry for the property nifi.sensitive.props.key.

NameDefault ValueAllowable ValuesDescription
Container NameName of the Azure storage container
Supports Expression Language: true (will be evaluated using flow file attributes and variable registry)
SAS TokenShared Access Signature token, including the leading '?'. Specify either SAS Token (recommended) or Account Key. There are certain risks in allowing the SAS token to be stored as a flowfile attribute. While it does provide for a more flexible flow by allowing the account name to be fetched dynamically from a flowfile attribute, care must be taken to restrict access to the event provenance data (e.g. by strictly controlling the policies governing provenance for this Processor). In addition, the provenance repositories may be put on encrypted disk partitions.
Sensitive Property: true
Supports Expression Language: true (will be evaluated using flow file attributes and variable registry)
Storage Account NameThe storage account name. There are certain risks in allowing the account name to be stored as a flowfile attribute. While it does provide for a more flexible flow by allowing the account name to be fetched dynamically from a flowfile attribute, care must be taken to restrict access to the event provenance data (e.g. by strictly controlling the policies governing provenance for this Processor). In addition, the provenance repositories may be put on encrypted disk partitions.
Sensitive Property: true
Supports Expression Language: true (will be evaluated using flow file attributes and variable registry)
Storage Account KeyThe storage account key. This is an admin-like password providing access to every container in this account. It is recommended one uses Shared Access Signature (SAS) token instead for fine-grained control with policies. There are certain risks in allowing the account key to be stored as a flowfile attribute. While it does provide for a more flexible flow by allowing the account key to be fetched dynamically from a flow file attribute, care must be taken to restrict access to the event provenance data (e.g. by strictly controlling the policies governing provenance for this Processor). In addition, the provenance repositories may be put on encrypted disk partitions.
Sensitive Property: true
Supports Expression Language: true (will be evaluated using flow file attributes and variable registry)
Blob${azure.blobname}The filename of the blob
Supports Expression Language: true (will be evaluated using flow file attributes and variable registry)
Proxy Configuration ServiceController Service API:
ProxyConfigurationService
Implementation: StandardProxyConfigurationService
Specifies the Proxy Configuration Controller Service to proxy network requests. Supported proxies: HTTP, SOCKS

Relationships:

NameDescription
successAll successfully processed FlowFiles are routed to this relationship
failureUnsuccessful operations will be transferred to the failure relationship.

Reads Attributes:

None specified.

Writes Attributes:

NameDescription
azure.lengthThe length of the blob fetched

State management:

This component does not store state.

Restricted:

This component is not restricted.

Input requirement:

This component requires an incoming relationship.

System Resource Considerations:

None specified.

See Also:

ListAzureBlobStorage, PutAzureBlobStorage, DeleteAzureBlobStorage