influx

package
v2.0.1 Latest Latest
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 Go to latest Published: Nov 11, 2020 License: MIT Imports: 18 Imported by: 0

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Constants

View Source 
const (
	// AllAnnotations returns all annotations from the chronograf database
	AllAnnotations = `` /* 161-byte string literal not displayed */
	// GetAnnotationID returns all annotations from the chronograf database where id is %s
	GetAnnotationID = `` /* 135-byte string literal not displayed */
	// AnnotationsDB is chronograf.  Perhaps later we allow this to be changed
	AnnotationsDB = "chronograf"
	// DefaultRP is autogen. Perhaps later we allow this to be changed
	DefaultRP = "autogen"
	// DefaultMeasurement is annotations.
	DefaultMeasurement = "annotations"
)
View Source 
const WhereToken = "WHERE"

WhereToken is used to parse the time expression from an influxql query

Variables

View Source 
var (
	// AllowAllDB means a user gets both read and write permissions for a db
	AllowAllDB = chronograf.Allowances{"WRITE", "READ"}
	// AllowAllAdmin means a user gets both read and write permissions for an admin
	AllowAllAdmin = chronograf.Allowances{"ALL"}
	// AllowRead means a user is only able to read the database.
	AllowRead = chronograf.Allowances{"READ"}
	// AllowWrite means a user is able to only write to the database
	AllowWrite = chronograf.Allowances{"WRITE"}
	// NoPrivileges occasionally shows up as a response for a users grants.
	NoPrivileges = "NO PRIVILEGES"
	// AllPrivileges means that a user has both read and write perms
	AllPrivileges = "ALL PRIVILEGES"
	// All means a user has both read and write perms. Alternative to AllPrivileges
	All = "ALL"
	// Read means a user can read a database
	Read = "READ"
	// Write means a user can write to a database
	Write = "WRITE"
)

Functions

func Convert 

func Convert(influxQL string) (chronograf.QueryConfig, error)

Convert changes an InfluxQL query to a QueryConfig

func Difference 

func Difference(wants chronograf.Permissions, haves chronograf.Permissions) (revoke chronograf.Permissions, add chronograf.Permissions)

Difference compares two permission sets and returns a set to be revoked and a set to be added

func JWT 

func JWT(username, sharedSecret string, now Now) (string, error)

JWT returns a token string accepted by InfluxDB using the sharedSecret as an Authorization: Bearer header

func ParseTime 

func ParseTime(influxQL string, now time.Time) (time.Duration, error)

ParseTime extracts the duration of the time range of the query

func TimeRangeAsEpochNano 

func TimeRangeAsEpochNano(expr influxql.Expr, now time.Time) (min, max int64, err error)

TimeRangeAsEpochNano extracs the min and max epoch times from the expression

func ToGrant 

func ToGrant(username string, perm chronograf.Permission) string

ToGrant converts the permission into InfluxQL grants

func ToInfluxQL 

func ToInfluxQL(action, preposition, username string, perm chronograf.Permission) string

ToInfluxQL converts the permission into InfluxQL

func ToPriv 

func ToPriv(a chronograf.Allowances) string

ToPriv converts chronograf allowances to InfluxQL

func ToRevoke 

func ToRevoke(username string, perm chronograf.Permission) string

ToRevoke converts the permission into InfluxQL revokes

Types

type AnnotationStore 

type AnnotationStore struct {
	// contains filtered or unexported fields
}

AnnotationStore stores annotations within InfluxDB

func NewAnnotationStore 

func NewAnnotationStore(client chronograf.TimeSeries) *AnnotationStore

NewAnnotationStore constructs an annoation store with a client

func (*AnnotationStore) Add 

func (a *AnnotationStore) Add(ctx context.Context, anno *chronograf.Annotation) (*chronograf.Annotation, error)

Add creates a new annotation in the store

func (*AnnotationStore) All 

func (a *AnnotationStore) All(ctx context.Context, start, stop time.Time) ([]chronograf.Annotation, error)

All lists all Annotations

func (*AnnotationStore) Delete 

func (a *AnnotationStore) Delete(ctx context.Context, id string) error

Delete removes the annotation from the store

func (*AnnotationStore) Get 

func (a *AnnotationStore) Get(ctx context.Context, id string) (*chronograf.Annotation, error)

Get retrieves an annotation

func (*AnnotationStore) Update 

func (a *AnnotationStore) Update(ctx context.Context, anno *chronograf.Annotation) error

Update replaces annotation; if the annotation's time is different, it also removes the previous annotation

type Authorizer 

type Authorizer interface {
	// Set may manipulate the request by adding the Authorization header
	Set(req *http.Request) error
}

Authorizer adds optional authorization header to request

func DefaultAuthorization 

func DefaultAuthorization(src *chronograf.Source) Authorizer

DefaultAuthorization creates either a shared JWT builder, basic auth or Noop

type BasicAuth 

type BasicAuth struct {
	Username string
	Password string
}

BasicAuth adds Authorization: Basic to the request header

func (*BasicAuth) Set 

func (b *BasicAuth) Set(r *http.Request) error

Set adds the basic auth headers to the request

type BearerJWT 

type BearerJWT struct {
	Username     string
	SharedSecret string
	Now          Now
}

BearerJWT is the default Bearer for InfluxDB

func (*BearerJWT) Set 

func (b *BearerJWT) Set(r *http.Request) error

Set adds an Authorization Bearer to the request if has a shared secret

func (*BearerJWT) Token 

func (b *BearerJWT) Token(username string) (string, error)

Token returns the expected InfluxDB JWT signed with the sharedSecret

type Client 

type Client struct {
	URL                *url.URL
	Authorizer         Authorizer
	InsecureSkipVerify bool
	Logger             chronograf.Logger
}

Client is a device for retrieving time series data from an InfluxDB instance

func (*Client) Add 

func (c *Client) Add(ctx context.Context, u *chronograf.User) (*chronograf.User, error)

Add a new User in InfluxDB

func (*Client) All 

func (c *Client) All(ctx context.Context) ([]chronograf.User, error)

All users in influx

func (*Client) AllDB 

func (c *Client) AllDB(ctx context.Context) ([]chronograf.Database, error)

AllDB returns all databases from within Influx

func (*Client) AllRP 

func (c *Client) AllRP(ctx context.Context, db string) ([]chronograf.RetentionPolicy, error)

AllRP returns all the retention policies for a specific database

func (*Client) Connect 

func (c *Client) Connect(ctx context.Context, src *chronograf.Source) error

Connect caches the URL and optional Bearer Authorization for the data source

func (*Client) CreateDB 

func (c *Client) CreateDB(ctx context.Context, db *chronograf.Database) (*chronograf.Database, error)

CreateDB creates a database within Influx

func (*Client) CreateRP 

func (c *Client) CreateRP(ctx context.Context, db string, rp *chronograf.RetentionPolicy) (*chronograf.RetentionPolicy, error)

CreateRP creates a retention policy for a specific database

func (*Client) Delete 

func (c *Client) Delete(ctx context.Context, u *chronograf.User) error

Delete the User from InfluxDB

func (*Client) DropDB 

func (c *Client) DropDB(ctx context.Context, db string) error

DropDB drops a database within Influx

func (*Client) DropRP 

func (c *Client) DropRP(ctx context.Context, db string, rp string) error

DropRP removes a specific retention policy for a specific database

func (*Client) Get 

func (c *Client) Get(ctx context.Context, q chronograf.UserQuery) (*chronograf.User, error)

Get retrieves a user if name exists.

func (*Client) GetMeasurements 

func (c *Client) GetMeasurements(ctx context.Context, db string, limit, offset int) ([]chronograf.Measurement, error)

GetMeasurements returns measurements in a specified database, paginated by optional limit and offset. If no limit or offset is provided, it defaults to a limit of 100 measurements with no offset.

func (*Client) Num 

func (c *Client) Num(ctx context.Context) (int, error)

Num is the number of users in DB

func (*Client) Permissions 

func (c *Client) Permissions(context.Context) chronograf.Permissions

Permissions return just READ and WRITE for OSS Influx

func (*Client) Ping 

func (c *Client) Ping(ctx context.Context) error

Ping hits the influxdb ping endpoint and returns the type of influx

func (*Client) Query 

func (c *Client) Query(ctx context.Context, q chronograf.Query) (chronograf.Response, error)

Query issues a request to a configured InfluxDB instance for time series information specified by query. Queries must be "fully-qualified," and include both the database and retention policy. In-flight requests can be cancelled using the provided context.

func (*Client) Roles 

func (c *Client) Roles(ctx context.Context) (chronograf.RolesStore, error)

Roles aren't support in OSS

func (*Client) Type 

func (c *Client) Type(ctx context.Context) (string, error)

Type hits the influxdb ping endpoint and returns the type of influx running

func (*Client) Update 

func (c *Client) Update(ctx context.Context, u *chronograf.User) error

Update the user's permissions or roles

func (*Client) UpdateRP 

func (c *Client) UpdateRP(ctx context.Context, db string, rp string, upd *chronograf.RetentionPolicy) (*chronograf.RetentionPolicy, error)

UpdateRP updates a specific retention policy for a specific database

func (*Client) Users 

func (c *Client) Users(ctx context.Context) chronograf.UsersStore

Users transforms InfluxDB into a user store

func (*Client) Version 

func (c *Client) Version(ctx context.Context) (string, error)

Version hits the influxdb ping endpoint and returns the version of influx

func (*Client) Write 

func (c *Client) Write(ctx context.Context, points []chronograf.Point) error

Write POSTs line protocol to a database and retention policy

type NoAuthorization 

type NoAuthorization struct{}

NoAuthorization does not add any authorization headers

func (*NoAuthorization) Set 

func (n *NoAuthorization) Set(req *http.Request) error

Set does not add authorization

type Now 

type Now func() time.Time

Now returns the current time

type Response 

type Response struct {
	Results json.RawMessage
	Err     string `json:"error,omitempty"`
}

Response is a partial JSON decoded InfluxQL response used to check for some errors

func (Response) MarshalJSON 

func (r Response) MarshalJSON() ([]byte, error)

MarshalJSON returns the raw results bytes from the response

Source Files

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