Struct Mmds 

pub struct Mmds { /* private fields */ }

The Mmds is the Microvm Metadata Service represented as an untyped json.

Implementations

impl Mmds

pub fn try_new(data_store_limit: usize) -> Result<Self, MmdsDatastoreError>

MMDS default instance with limit data_store_limit

pub fn set_version(&mut self, version: MmdsVersion)

Set the MMDS version.

pub fn version(&self) -> MmdsVersion

Get the MMDS version.

pub fn set_imds_compat(&mut self, imds_compat: bool)

Set the compatibility with EC2 IMDS.

pub fn imds_compat(&self) -> bool

Get the compatibility with EC2 IMDS.

pub fn set_aad(&mut self, instance_id: &str)

Sets the Additional Authenticated Data to be used for encryption and decryption of the session token.

pub fn is_valid_token(&self, token: &str) -> bool

Checks if the provided token has not expired.

pub fn generate_token(&mut self, ttl_seconds: u32) -> Result<String, TokenError>

Generate a new Mmds token using the token authority.

pub fn set_data_store_limit(&mut self, data_store_limit: usize)

set MMDS data store limit to data_store_limit

pub fn put_data(&mut self, data: Value) -> Result<(), MmdsDatastoreError>

put data in MMDS data store

pub fn patch_data( &mut self, patch_data: Value, ) -> Result<(), MmdsDatastoreError>

patch update MMDS data store with patch_data

pub fn data_store_value(&self) -> Value

return MMDS data store value We do not check size of data_store before returning a result because due to limit from put/patch the data_store can not be bigger than the limit imposed by the server.

pub fn get_value( &self, path: String, format: OutputFormat, ) -> Result<String, MmdsDatastoreError>

Returns the subtree located at path. When the path corresponds to a leaf, it returns the value. Returns Error::NotFound when the path is invalid.

Trait Implementations

impl Debug for Mmds

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Mmds

fn default() -> Self

Returns the “default value” for a type.