2018-05-29 21:07:40 +00:00
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---
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layout: api
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page_title: Connect - Agent - HTTP API
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sidebar_current: api-agent-connect
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description: |-
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The /agent/connect endpoints interact with Connect with agent-local operations.
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---
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# Connect - Agent HTTP API
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The `/agent/connect` endpoints interact with [Connect](/docs/connect/index.html)
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with agent-local operations.
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These endpoints may mirror the [non-agent Connect endpoints](/api/connect.html)
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in some cases. Almost all agent-local Connect endpoints perform local caching
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to optimize performance of Connect without having to make requests to the server.
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## Authorize
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This endpoint tests whether a connection attempt is authorized between
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two services. This is the primary API that must be implemented by
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[proxies](/docs/connect/proxies.html) or
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[native integrations](/docs/connect/native.html)
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that wish to integrate with Connect. Prior to calling this API, it is expected
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that the client TLS certificate has been properly verified against the
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current CA roots.
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The implementation of this API uses locally cached data
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and doesn't require any request forwarding to a server. Therefore, the
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response typically occurs in microseconds to impose minimal overhead on the
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connection attempt.
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2020-04-06 20:27:35 +00:00
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| Method | Path | Produces |
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| ------ | -------------------------- | ------------------ |
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| `POST` | `/agent/connect/authorize` | `application/json` |
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The table below shows this endpoint's support for
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2019-04-30 17:20:51 +00:00
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[blocking queries](/api/features/blocking.html),
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[consistency modes](/api/features/consistency.html),
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[agent caching](/api/features/caching.html), and
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[required ACLs](/api/index.html#authentication).
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2018-05-29 21:07:40 +00:00
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2018-09-06 10:34:28 +00:00
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| Blocking Queries | Consistency Modes | Agent Caching | ACL Required |
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| ---------------- | ----------------- | -------------------- | --------------- |
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| `NO` | `none` | `background refresh` | `service:write` |
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2018-05-29 21:07:40 +00:00
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### Parameters
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- `Target` `(string: <required>)` - The name of the service that is being
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requested.
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- `ClientCertURI` `(string: <required>)` - The unique identifier for the
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requesting client. This is currently the URI SAN from the TLS client
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certificate.
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- `ClientCertSerial` `(string: <required>)` - The colon-hex-encoded serial
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number for the requesting client cert. This is used to check against
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revocation lists.
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- `Namespace` `(string: "")` - **(Enterprise Only)** Specifies the namespace of
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the target service. If not provided in the JSON body, the value of
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the `ns` URL query parameter or in the `X-Consul-Namespace` header will be used.
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If not provided at all, the namespace will be inherited from the request's ACL
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token or will default to the `default` namespace. Added in Consul 1.7.0.
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2018-05-29 21:07:40 +00:00
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### Sample Payload
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```json
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{
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"Target": "db",
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"ClientCertURI": "spiffe://dc1-7e567ac2-551d-463f-8497-f78972856fc1.consul/ns/default/dc/dc1/svc/web",
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"ClientCertSerial": "04:00:00:00:00:01:15:4b:5a:c3:94"
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}
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```
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### Sample Request
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```text
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$ curl \
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--request POST \
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--data @payload.json \
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http://127.0.0.1:8500/v1/agent/connect/authorize
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```
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### Sample Response
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```json
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{
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"Authorized": true,
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"Reason": "Matched intention: web => db (allow)"
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}
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```
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## Certificate Authority (CA) Roots
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This endpoint returns the trusted certificate authority (CA) root certificates.
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This is used by [proxies](/docs/connect/proxies.html) or
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[native integrations](/docs/connect/native.html) to verify served client
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or server certificates are valid.
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This is equivalent to the [non-Agent Connect endpoint](/api/connect.html),
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but the response of this request is cached locally at the agent. This allows
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for very fast response times and for fail open behavior if the server is
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unavailable. This endpoint should be used by proxies and native integrations.
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2020-04-06 20:27:35 +00:00
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| Method | Path | Produces |
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| ------ | ------------------------- | ------------------ |
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| `GET` | `/agent/connect/ca/roots` | `application/json` |
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The table below shows this endpoint's support for
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2019-04-30 17:20:51 +00:00
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[blocking queries](/api/features/blocking.html),
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[consistency modes](/api/features/consistency.html),
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[agent caching](/api/features/caching.html), and
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[required ACLs](/api/index.html#authentication).
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2018-05-29 21:07:40 +00:00
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2018-09-06 10:34:28 +00:00
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| Blocking Queries | Consistency Modes | Agent Caching | ACL Required |
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| ---------------- | ----------------- | -------------------- | ------------ |
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| `YES` | `all` | `background refresh` | `none` |
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2018-05-29 21:07:40 +00:00
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### Sample Request
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```text
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$ curl \
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http://127.0.0.1:8500/v1/agent/connect/ca/roots
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```
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### Sample Response
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```json
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{
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"ActiveRootID": "15:bf:3a:7d:ff:ea:c1:8c:46:67:6c:db:b8:81:18:36:ad:e5:d0:c7",
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"Roots": [
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{
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"ID": "15:bf:3a:7d:ff:ea:c1:8c:46:67:6c:db:b8:81:18:36:ad:e5:d0:c7",
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"Name": "Consul CA Root Cert",
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"SerialNumber": 7,
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"SigningKeyID": "1f:91:ca:41:8f:ac:67:bf:59:c2:fa:4e:75:5c:d8:f0:55:de:be:75:b8:33:31:d5:24:b0:04:b3:e8:97:5b:7e",
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"ExternalTrustDomain": "a1499528-fbf6-df7b-05e5-ae81e1873fc4",
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"NotBefore": "2018-05-21T16:33:28Z",
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"NotAfter": "2028-05-18T16:33:28Z",
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"RootCert": "-----BEGIN CERTIFICATE-----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\nfs2hBxWIELGwTAIgLdO7RRw+z9nnxCIA6kNl//mIQb+PGItespiHZKAz74Q=\n-----END CERTIFICATE-----\n",
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"IntermediateCerts": null,
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"Active": true,
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"PrivateKeyType": "ec",
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"PrivateKeyBits": 256,
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"CreateIndex": 8,
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"ModifyIndex": 8
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}
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]
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}
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```
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## Service Leaf Certificate
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This endpoint returns the leaf certificate representing a single service.
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This certificate is used as a server certificate for accepting inbound
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connections and is also used as the client certificate for establishing
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outbound connections to other services.
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The agent generates a CSR locally and calls the
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[CA sign API](/api/connect/ca.html) to sign it. The resulting certificate
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is cached and returned by this API until it is near expiry or the root
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certificates change.
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This API supports blocking queries. The blocking query will block until
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a new certificate is necessary because the existing certificate will expire
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or the root certificate is being rotated. This blocking behavior allows
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clients to efficiently wait for certificate rotations.
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2020-04-06 20:27:35 +00:00
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| Method | Path | Produces |
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| ------ | --------------------------------- | ------------------ |
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| `GET` | `/agent/connect/ca/leaf/:service` | `application/json` |
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2018-05-29 21:07:40 +00:00
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The table below shows this endpoint's support for
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2019-04-30 17:20:51 +00:00
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[blocking queries](/api/features/blocking.html),
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[consistency modes](/api/features/consistency.html),
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[agent caching](/api/features/caching.html), and
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[required ACLs](/api/index.html#authentication).
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2018-05-29 21:07:40 +00:00
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2018-09-06 10:34:28 +00:00
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| Blocking Queries | Consistency Modes | Agent Caching | ACL Required |
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| ---------------- | ----------------- | -------------------- | --------------- |
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| `YES` | `all` | `background refresh` | `service:write` |
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2018-05-29 21:07:40 +00:00
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### Parameters
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- `Service` `(string: <required>)` - The name of the service for the leaf
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certificate. This is specified in the URL. The service does not need to
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exist in the catalog, but the proper ACL permissions must be available.
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### Sample Request
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```text
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$ curl \
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http://127.0.0.1:8500/v1/agent/connect/ca/leaf/web
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```
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### Sample Response
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```json
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{
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"SerialNumber": "08",
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"CertPEM": "-----BEGIN CERTIFICATE-----\nMIIChjCCAi2gAwIBAgIBCDAKBggqhkjOPQQDAjAWMRQwEgYDVQQDEwtDb25zdWwg\nQ0EgNzAeFw0xODA1MjExNjMzMjhaFw0xODA1MjQxNjMzMjhaMA4xDDAKBgNVBAMT\nA3dlYjBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABJdLqRKd1SRycFOFceMHOBZK\nQW8HHO8jZ5C8dRswD+IwTd/otJPiaPrVzGOAi4MsaEUgDMemvN1jiywHt3II08mj\nggFyMIIBbjAOBgNVHQ8BAf8EBAMCA7gwHQYDVR0lBBYwFAYIKwYBBQUHAwIGCCsG\nAQUFBwMBMAwGA1UdEwEB/wQCMAAwaAYDVR0OBGEEXzFmOjkxOmNhOjQxOjhmOmFj\nOjY3OmJmOjU5OmMyOmZhOjRlOjc1OjVjOmQ4OmYwOjU1OmRlOmJlOjc1OmI4OjMz\nOjMxOmQ1OjI0OmIwOjA0OmIzOmU4Ojk3OjViOjdlMGoGA1UdIwRjMGGAXzFmOjkx\nOmNhOjQxOjhmOmFjOjY3OmJmOjU5OmMyOmZhOjRlOjc1OjVjOmQ4OmYwOjU1OmRl\nOmJlOjc1OmI4OjMzOjMxOmQ1OjI0OmIwOjA0OmIzOmU4Ojk3OjViOjdlMFkGA1Ud\nEQRSMFCGTnNwaWZmZTovLzExMTExMTExLTIyMjItMzMzMy00NDQ0LTU1NTU1NTU1\nNTU1NS5jb25zdWwvbnMvZGVmYXVsdC9kYy9kYzEvc3ZjL3dlYjAKBggqhkjOPQQD\nAgNHADBEAiBS8kH3UERhBPHM/CQV/jXKLr0kReLqCdq1jZxc8Aq7hQIgFIus/ZX0\nOM/X3Yc1xb/qJiiEVzXcaz3oVFULOzrNAwk=\n-----END CERTIFICATE-----\n",
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"PrivateKeyPEM": "-----BEGIN EC PRIVATE KEY-----\nMHcCAQEEIAOGglbwY8HdD3LFX6Bc94co2pzeFTto8ebWoML5E+QfoAoGCCqGSM49\nAwEHoUQDQgAEl0upEp3VJHJwU4Vx4wc4FkpBbwcc7yNnkLx1GzAP4jBN3+i0k+Jo\n+tXMY4CLgyxoRSAMx6a83WOLLAe3cgjTyQ==\n-----END EC PRIVATE KEY-----\n",
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"Service": "web",
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"ServiceURI": "spiffe://11111111-2222-3333-4444-555555555555.consul/ns/default/dc/dc1/svc/web",
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"ValidAfter": "2018-05-21T16:33:28Z",
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"ValidBefore": "2018-05-24T16:33:28Z",
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"CreateIndex": 5,
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"ModifyIndex": 5
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}
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```
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- `SerialNumber` `string` - Monotonically increasing 64-bit serial number
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representing all certificates issued by this Consul cluster.
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- `CertPEM` `(string)` - The PEM-encoded certificate.
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- `PrivateKeyPEM` `(string)` - The PEM-encoded private key for this certificate.
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- `Service` `(string)` - The name of the service that this certificate identifies.
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- `ServiceURI` `(string)` - The URI SAN for this service.
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- `ValidAfter` `(string)` - The time after which the certificate is valid.
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Used with `ValidBefore` this can determine the validity period of the certificate.
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- `ValidBefore` `(string)` - The time before which the certificate is valid.
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Used with `ValidAfter` this can determine the validity period of the certificate.
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