Always return 200 OK on /v0/health, reinstate admin api doc as draft and complete it
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Alex Auvolat
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686
doc/drafts/admin-api.md
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686
doc/drafts/admin-api.md
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title = "Administration API"
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weight = 60
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+++
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The Garage administration API is accessible through a dedicated server whose
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listen address is specified in the `[admin]` section of the configuration
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file (see [configuration file
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reference](@/documentation/reference-manual/configuration.md))
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**WARNING.** At this point, there is no comittement to stability of the APIs described in this document.
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We will bump the version numbers prefixed to each API endpoint at each time the syntax
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or semantics change, meaning that code that relies on these endpoint will break
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when changes are introduced.
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The Garage administration API was introduced in version 0.7.2, this document
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does not apply to older versions of Garage.
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## Access control
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The admin API uses two different tokens for acces control, that are specified in the config file's `[admin]` section:
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- `metrics_token`: the token for accessing the Metrics endpoint (if this token
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is not set in the config file, the Metrics endpoint can be accessed without
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access control);
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- `admin_token`: the token for accessing all of the other administration
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endpoints (if this token is not set in the config file, access to these
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endpoints is disabled entirely).
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These tokens are used as simple HTTP bearer tokens. In other words, to
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authenticate access to an admin API endpoint, add the following HTTP header
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to your request:
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```
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Authorization: Bearer <token>
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```
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## Administration API endpoints
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### Metrics-related endpoints
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#### Metrics `GET /metrics`
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Returns internal Garage metrics in Prometheus format.
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#### Health `GET /health`
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Used for simple health checks in a cluster setting with an orchestrator.
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Returns an HTTP status 200 if the node is ready to answer user's requests,
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and an HTTP status 503 (Service Unavailable) if there are some partitions
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for which a quorum of nodes is not available.
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A simple textual message is also returned in a body with content-type `text/plain`.
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See `/v0/health` for an API that also returns JSON output.
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### Cluster operations
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#### GetClusterStatus `GET /v0/status`
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Returns the cluster's current status in JSON, including:
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- ID of the node being queried and its version of the Garage daemon
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- Live nodes
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- Currently configured cluster layout
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- Staged changes to the cluster layout
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Example response body:
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```json
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{
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"node": "ec79480e0ce52ae26fd00c9da684e4fa56658d9c64cdcecb094e936de0bfe71f",
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"garage_version": "git:v0.8.0",
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"knownNodes": {
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"ec79480e0ce52ae26fd00c9da684e4fa56658d9c64cdcecb094e936de0bfe71f": {
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"addr": "10.0.0.11:3901",
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"is_up": true,
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"last_seen_secs_ago": 9,
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"hostname": "node1"
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},
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"4a6ae5a1d0d33bf895f5bb4f0a418b7dc94c47c0dd2eb108d1158f3c8f60b0ff": {
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"addr": "10.0.0.12:3901",
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"is_up": true,
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"last_seen_secs_ago": 1,
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"hostname": "node2"
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},
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"23ffd0cdd375ebff573b20cc5cef38996b51c1a7d6dbcf2c6e619876e507cf27": {
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"addr": "10.0.0.21:3901",
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"is_up": true,
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"last_seen_secs_ago": 7,
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"hostname": "node3"
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},
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"e2ee7984ee65b260682086ec70026165903c86e601a4a5a501c1900afe28d84b": {
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"addr": "10.0.0.22:3901",
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"is_up": true,
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"last_seen_secs_ago": 1,
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"hostname": "node4"
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}
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},
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"layout": {
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"version": 12,
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"roles": {
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"ec79480e0ce52ae26fd00c9da684e4fa56658d9c64cdcecb094e936de0bfe71f": {
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"zone": "dc1",
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"capacity": 4,
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"tags": [
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"node1"
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]
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},
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"4a6ae5a1d0d33bf895f5bb4f0a418b7dc94c47c0dd2eb108d1158f3c8f60b0ff": {
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"zone": "dc1",
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"capacity": 6,
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"tags": [
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"node2"
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]
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},
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"23ffd0cdd375ebff573b20cc5cef38996b51c1a7d6dbcf2c6e619876e507cf27": {
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"zone": "dc2",
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"capacity": 10,
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"tags": [
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"node3"
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]
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}
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},
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"stagedRoleChanges": {
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"e2ee7984ee65b260682086ec70026165903c86e601a4a5a501c1900afe28d84b": {
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"zone": "dc2",
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"capacity": 5,
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"tags": [
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"node4"
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]
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}
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}
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}
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}
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```
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#### GetClusterHealth `GET /v0/health`
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Returns the cluster's current health in JSON format, with the following variables:
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- `status`: one of `Healthy`, `Degraded` or `Unavailable`:
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- Healthy: Garage node is connected to all storage nodes
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- Degraded: Garage node is not connected to all storage nodes, but a quorum of write nodes is available for all partitions
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- Unavailable: a quorum of write nodes is not available for some partitions
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- `known_nodes`: the number of nodes this Garage node has had a TCP connection to since the daemon started
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- `connected_nodes`: the nubmer of nodes this Garage node currently has an open connection to
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- `storage_nodes`: the number of storage nodes currently registered in the cluster layout
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- `storage_nodes_ok`: the number of storage nodes to which a connection is currently open
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- `partitions`: the total number of partitions of the data (currently always 256)
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- `partitions_quorum`: the number of partitions for which a quorum of write nodes is available
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- `partitions_all_ok`: the number of partitions for which we are connected to all storage nodes responsible of storing it
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Contrarily to `GET /health`, this endpoint always returns a 200 OK HTTP response code.
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Example response body:
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```json
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{
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"status": "Degraded",
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"known_nodes": 3,
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"connected_nodes": 2,
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"storage_nodes": 3,
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"storage_nodes_ok": 2,
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"partitions": 256,
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"partitions_quorum": 256,
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"partitions_all_ok": 0
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}
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```
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#### ConnectClusterNodes `POST /v0/connect`
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Instructs this Garage node to connect to other Garage nodes at specified addresses.
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Example request body:
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```json
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[
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"ec79480e0ce52ae26fd00c9da684e4fa56658d9c64cdcecb094e936de0bfe71f@10.0.0.11:3901",
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"4a6ae5a1d0d33bf895f5bb4f0a418b7dc94c47c0dd2eb108d1158f3c8f60b0ff@10.0.0.12:3901"
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]
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```
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The format of the string for a node to connect to is: `<node ID>@<ip address>:<port>`, same as in the `garage node connect` CLI call.
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Example response:
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```json
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[
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{
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"success": true,
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"error": null
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},
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{
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"success": false,
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"error": "Handshake error"
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}
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]
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```
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#### GetClusterLayout `GET /v0/layout`
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Returns the cluster's current layout in JSON, including:
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- Currently configured cluster layout
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- Staged changes to the cluster layout
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(the info returned by this endpoint is a subset of the info returned by GetClusterStatus)
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Example response body:
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```json
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{
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"version": 12,
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"roles": {
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"ec79480e0ce52ae26fd00c9da684e4fa56658d9c64cdcecb094e936de0bfe71f": {
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"zone": "dc1",
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"capacity": 4,
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"tags": [
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"node1"
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]
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},
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"4a6ae5a1d0d33bf895f5bb4f0a418b7dc94c47c0dd2eb108d1158f3c8f60b0ff": {
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"zone": "dc1",
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"capacity": 6,
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"tags": [
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"node2"
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]
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},
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"23ffd0cdd375ebff573b20cc5cef38996b51c1a7d6dbcf2c6e619876e507cf27": {
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"zone": "dc2",
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"capacity": 10,
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"tags": [
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"node3"
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]
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}
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},
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"stagedRoleChanges": {
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"e2ee7984ee65b260682086ec70026165903c86e601a4a5a501c1900afe28d84b": {
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"zone": "dc2",
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"capacity": 5,
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"tags": [
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"node4"
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]
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}
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}
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}
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```
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#### UpdateClusterLayout `POST /v0/layout`
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Send modifications to the cluster layout. These modifications will
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be included in the staged role changes, visible in subsequent calls
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of `GetClusterLayout`. Once the set of staged changes is satisfactory,
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the user may call `ApplyClusterLayout` to apply the changed changes,
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or `Revert ClusterLayout` to clear all of the staged changes in
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the layout.
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Request body format:
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```json
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{
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<node_id>: {
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"capacity": <new_capacity>,
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"zone": <new_zone>,
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"tags": [
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<new_tag>,
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...
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]
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},
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<node_id_to_remove>: null,
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...
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}
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```
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Contrary to the CLI that may update only a subset of the fields
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`capacity`, `zone` and `tags`, when calling this API all of these
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values must be specified.
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#### ApplyClusterLayout `POST /v0/layout/apply`
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Applies to the cluster the layout changes currently registered as
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staged layout changes.
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Request body format:
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```json
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{
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"version": 13
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}
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```
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Similarly to the CLI, the body must include the version of the new layout
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that will be created, which MUST be 1 + the value of the currently
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existing layout in the cluster.
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#### RevertClusterLayout `POST /v0/layout/revert`
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Clears all of the staged layout changes.
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Request body format:
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```json
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{
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"version": 13
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}
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```
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Reverting the staged changes is done by incrementing the version number
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and clearing the contents of the staged change list.
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Similarly to the CLI, the body must include the incremented
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version number, which MUST be 1 + the value of the currently
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existing layout in the cluster.
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### Access key operations
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#### ListKeys `GET /v0/key`
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Returns all API access keys in the cluster.
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Example response:
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```json
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[
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{
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"id": "GK31c2f218a2e44f485b94239e",
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"name": "test"
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},
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{
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"id": "GKe10061ac9c2921f09e4c5540",
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"name": "test2"
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}
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]
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```
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#### CreateKey `POST /v0/key`
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Creates a new API access key.
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Request body format:
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```json
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{
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"name": "NameOfMyKey"
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}
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```
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#### ImportKey `POST /v0/key/import`
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Imports an existing API key.
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Request body format:
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```json
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{
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"accessKeyId": "GK31c2f218a2e44f485b94239e",
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"secretAccessKey": "b892c0665f0ada8a4755dae98baa3b133590e11dae3bcc1f9d769d67f16c3835",
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"name": "NameOfMyKey"
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}
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```
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#### GetKeyInfo `GET /v0/key?id=<acces key id>`
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#### GetKeyInfo `GET /v0/key?search=<pattern>`
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Returns information about the requested API access key.
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If `id` is set, the key is looked up using its exact identifier (faster).
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If `search` is set, the key is looked up using its name or prefix
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of identifier (slower, all keys are enumerated to do this).
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Example response:
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```json
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{
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"name": "test",
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"accessKeyId": "GK31c2f218a2e44f485b94239e",
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"secretAccessKey": "b892c0665f0ada8a4755dae98baa3b133590e11dae3bcc1f9d769d67f16c3835",
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"permissions": {
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"createBucket": false
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},
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"buckets": [
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{
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"id": "70dc3bed7fe83a75e46b66e7ddef7d56e65f3c02f9f80b6749fb97eccb5e1033",
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"globalAliases": [
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"test2"
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],
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"localAliases": [],
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"permissions": {
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"read": true,
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"write": true,
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"owner": false
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}
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},
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{
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"id": "d7452a935e663fc1914f3a5515163a6d3724010ce8dfd9e4743ca8be5974f995",
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"globalAliases": [
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"test3"
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],
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"localAliases": [],
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"permissions": {
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"read": true,
|
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"write": true,
|
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"owner": false
|
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}
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||||
},
|
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{
|
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"id": "e6a14cd6a27f48684579ec6b381c078ab11697e6bc8513b72b2f5307e25fff9b",
|
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"globalAliases": [],
|
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"localAliases": [
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"test"
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],
|
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"permissions": {
|
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"read": true,
|
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"write": true,
|
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"owner": true
|
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}
|
||||
},
|
||||
{
|
||||
"id": "96470e0df00ec28807138daf01915cfda2bee8eccc91dea9558c0b4855b5bf95",
|
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"globalAliases": [
|
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"alex"
|
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],
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"localAliases": [],
|
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"permissions": {
|
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"read": true,
|
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"write": true,
|
||||
"owner": true
|
||||
}
|
||||
}
|
||||
]
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}
|
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```
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|
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#### DeleteKey `DELETE /v0/key?id=<acces key id>`
|
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|
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Deletes an API access key.
|
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|
||||
#### UpdateKey `POST /v0/key?id=<acces key id>`
|
||||
|
||||
Updates information about the specified API access key.
|
||||
|
||||
Request body format:
|
||||
|
||||
```json
|
||||
{
|
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"name": "NameOfMyKey",
|
||||
"allow": {
|
||||
"createBucket": true,
|
||||
},
|
||||
"deny": {}
|
||||
}
|
||||
```
|
||||
|
||||
All fields (`name`, `allow` and `deny`) are optionnal.
|
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If they are present, the corresponding modifications are applied to the key, otherwise nothing is changed.
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The possible flags in `allow` and `deny` are: `createBucket`.
|
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|
||||
|
||||
### Bucket operations
|
||||
|
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#### ListBuckets `GET /v0/bucket`
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||||
|
||||
Returns all storage buckets in the cluster.
|
||||
|
||||
Example response:
|
||||
|
||||
```json
|
||||
[
|
||||
{
|
||||
"id": "70dc3bed7fe83a75e46b66e7ddef7d56e65f3c02f9f80b6749fb97eccb5e1033",
|
||||
"globalAliases": [
|
||||
"test2"
|
||||
],
|
||||
"localAliases": []
|
||||
},
|
||||
{
|
||||
"id": "96470e0df00ec28807138daf01915cfda2bee8eccc91dea9558c0b4855b5bf95",
|
||||
"globalAliases": [
|
||||
"alex"
|
||||
],
|
||||
"localAliases": []
|
||||
},
|
||||
{
|
||||
"id": "d7452a935e663fc1914f3a5515163a6d3724010ce8dfd9e4743ca8be5974f995",
|
||||
"globalAliases": [
|
||||
"test3"
|
||||
],
|
||||
"localAliases": []
|
||||
},
|
||||
{
|
||||
"id": "e6a14cd6a27f48684579ec6b381c078ab11697e6bc8513b72b2f5307e25fff9b",
|
||||
"globalAliases": [],
|
||||
"localAliases": [
|
||||
{
|
||||
"accessKeyId": "GK31c2f218a2e44f485b94239e",
|
||||
"alias": "test"
|
||||
}
|
||||
]
|
||||
}
|
||||
]
|
||||
```
|
||||
|
||||
#### GetBucketInfo `GET /v0/bucket?id=<bucket id>`
|
||||
#### GetBucketInfo `GET /v0/bucket?globalAlias=<alias>`
|
||||
|
||||
Returns information about the requested storage bucket.
|
||||
|
||||
If `id` is set, the bucket is looked up using its exact identifier.
|
||||
If `globalAlias` is set, the bucket is looked up using its global alias.
|
||||
(both are fast)
|
||||
|
||||
Example response:
|
||||
|
||||
```json
|
||||
{
|
||||
"id": "afa8f0a22b40b1247ccd0affb869b0af5cff980924a20e4b5e0720a44deb8d39",
|
||||
"globalAliases": [],
|
||||
"websiteAccess": false,
|
||||
"websiteConfig": null,
|
||||
"keys": [
|
||||
{
|
||||
"accessKeyId": "GK31c2f218a2e44f485b94239e",
|
||||
"name": "Imported key",
|
||||
"permissions": {
|
||||
"read": true,
|
||||
"write": true,
|
||||
"owner": true
|
||||
},
|
||||
"bucketLocalAliases": [
|
||||
"debug"
|
||||
]
|
||||
}
|
||||
],
|
||||
"objects": 14827,
|
||||
"bytes": 13189855625,
|
||||
"unfinshedUploads": 0,
|
||||
"quotas": {
|
||||
"maxSize": null,
|
||||
"maxObjects": null
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
#### CreateBucket `POST /v0/bucket`
|
||||
|
||||
Creates a new storage bucket.
|
||||
|
||||
Request body format:
|
||||
|
||||
```json
|
||||
{
|
||||
"globalAlias": "NameOfMyBucket"
|
||||
}
|
||||
```
|
||||
|
||||
OR
|
||||
|
||||
```json
|
||||
{
|
||||
"localAlias": {
|
||||
"accessKeyId": "GK31c2f218a2e44f485b94239e",
|
||||
"alias": "NameOfMyBucket",
|
||||
"allow": {
|
||||
"read": true,
|
||||
"write": true,
|
||||
"owner": false
|
||||
}
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
OR
|
||||
|
||||
```json
|
||||
{}
|
||||
```
|
||||
|
||||
Creates a new bucket, either with a global alias, a local one,
|
||||
or no alias at all.
|
||||
|
||||
Technically, you can also specify both `globalAlias` and `localAlias` and that would create
|
||||
two aliases, but I don't see why you would want to do that.
|
||||
|
||||
#### DeleteBucket `DELETE /v0/bucket?id=<bucket id>`
|
||||
|
||||
Deletes a storage bucket. A bucket cannot be deleted if it is not empty.
|
||||
|
||||
Warning: this will delete all aliases associated with the bucket!
|
||||
|
||||
#### UpdateBucket `PUT /v0/bucket?id=<bucket id>`
|
||||
|
||||
Updates configuration of the given bucket.
|
||||
|
||||
Request body format:
|
||||
|
||||
```json
|
||||
{
|
||||
"websiteAccess": {
|
||||
"enabled": true,
|
||||
"indexDocument": "index.html",
|
||||
"errorDocument": "404.html"
|
||||
},
|
||||
"quotas": {
|
||||
"maxSize": 19029801,
|
||||
"maxObjects": null,
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
All fields (`websiteAccess` and `quotas`) are optionnal.
|
||||
If they are present, the corresponding modifications are applied to the bucket, otherwise nothing is changed.
|
||||
|
||||
In `websiteAccess`: if `enabled` is `true`, `indexDocument` must be specified.
|
||||
The field `errorDocument` is optional, if no error document is set a generic
|
||||
error message is displayed when errors happen. Conversely, if `enabled` is
|
||||
`false`, neither `indexDocument` nor `errorDocument` must be specified.
|
||||
|
||||
In `quotas`: new values of `maxSize` and `maxObjects` must both be specified, or set to `null`
|
||||
to remove the quotas. An absent value will be considered the same as a `null`. It is not possible
|
||||
to change only one of the two quotas.
|
||||
|
||||
### Operations on permissions for keys on buckets
|
||||
|
||||
#### BucketAllowKey `POST /v0/bucket/allow`
|
||||
|
||||
Allows a key to do read/write/owner operations on a bucket.
|
||||
|
||||
Request body format:
|
||||
|
||||
```json
|
||||
{
|
||||
"bucketId": "e6a14cd6a27f48684579ec6b381c078ab11697e6bc8513b72b2f5307e25fff9b",
|
||||
"accessKeyId": "GK31c2f218a2e44f485b94239e",
|
||||
"permissions": {
|
||||
"read": true,
|
||||
"write": true,
|
||||
"owner": true
|
||||
},
|
||||
}
|
||||
```
|
||||
|
||||
Flags in `permissions` which have the value `true` will be activated.
|
||||
Other flags will remain unchanged.
|
||||
|
||||
#### BucketDenyKey `POST /v0/bucket/deny`
|
||||
|
||||
Denies a key from doing read/write/owner operations on a bucket.
|
||||
|
||||
Request body format:
|
||||
|
||||
```json
|
||||
{
|
||||
"bucketId": "e6a14cd6a27f48684579ec6b381c078ab11697e6bc8513b72b2f5307e25fff9b",
|
||||
"accessKeyId": "GK31c2f218a2e44f485b94239e",
|
||||
"permissions": {
|
||||
"read": false,
|
||||
"write": false,
|
||||
"owner": true
|
||||
},
|
||||
}
|
||||
```
|
||||
|
||||
Flags in `permissions` which have the value `true` will be deactivated.
|
||||
Other flags will remain unchanged.
|
||||
|
||||
|
||||
### Operations on bucket aliases
|
||||
|
||||
#### GlobalAliasBucket `PUT /v0/bucket/alias/global?id=<bucket id>&alias=<global alias>`
|
||||
|
||||
Empty body. Creates a global alias for a bucket.
|
||||
|
||||
#### GlobalUnaliasBucket `DELETE /v0/bucket/alias/global?id=<bucket id>&alias=<global alias>`
|
||||
|
||||
Removes a global alias for a bucket.
|
||||
|
||||
#### LocalAliasBucket `PUT /v0/bucket/alias/local?id=<bucket id>&accessKeyId=<access key ID>&alias=<local alias>`
|
||||
|
||||
Empty body. Creates a local alias for a bucket in the namespace of a specific access key.
|
||||
|
||||
#### LocalUnaliasBucket `DELETE /v0/bucket/alias/local?id=<bucket id>&accessKeyId<access key ID>&alias=<local alias>`
|
||||
|
||||
Removes a local alias for a bucket in the namespace of a specific access key.
|
||||
|
||||
@ -47,15 +47,10 @@ pub async fn handle_get_cluster_status(garage: &Arc<Garage>) -> Result<Response<
|
||||
pub async fn handle_get_cluster_health(garage: &Arc<Garage>) -> Result<Response<Body>, Error> {
|
||||
let health = garage.system.health();
|
||||
|
||||
let status = match health.status {
|
||||
ClusterHealthStatus::Unavailable => StatusCode::SERVICE_UNAVAILABLE,
|
||||
_ => StatusCode::OK,
|
||||
};
|
||||
|
||||
let resp_json =
|
||||
serde_json::to_string_pretty(&health).map_err(garage_util::error::Error::from)?;
|
||||
Ok(Response::builder()
|
||||
.status(status)
|
||||
.status(StatusCode::OK)
|
||||
.header(http::header::CONTENT_TYPE, "application/json")
|
||||
.body(Body::from(resp_json))?)
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user