In this introduction to SPIRE you will learn how to:
- Start the spire-server process
- Attest a spire-agent to the server using a join token
- Configure a registration entry for a workload
- Fetch an x509-SVID over the WorkloadAPI
- Learn where to find resources for more complex installations
- A 64 bit Linux or macOS environment
- The openssl command line tool
- For macOS, Go 1.13 or higher must be installed to build SPIRE. See https://golang.org/dl/ or run
brew install golang.
The commands in this getting started guide can be run as a standard user or root.
Downloading SPIRE for Linux
Run the following command to download and unpack pre-built
spire-agent executables and example configuration files in a
$ curl -s -N -L https://github.com/spiffe/spire/releases/download/v0.10.1/spire-0.10.1-linux-x86_64-glibc.tar.gz | tar xz
Building SPIRE on macOS/Darwin
Run the following commands to clone SPIRE and build the
spire-agent executables using go. The executables will be created in the
To complete this step you will need Go 1.13 or higher (https://golang.org/dl/)
$ git clone --single-branch --branch v0.10.1 https://github.com/spiffe/spire.git $ cd spire $ go build ./cmd/spire-server $ go build ./cmd/spire-agent
Create, and move the SPIRE executables into, a
bin directory as expected by the rest of this document:
$ mkdir bin $ mv spire-server spire-agent bin
Starting the SPIRE Server
The SPIRE Server manages and issues identities. You can use the example configuration file provided to start the server, from within the directory created in the previous step:
$ bin/spire-server run -config conf/server/server.conf & ... INFO Starting TCP server address="127.0.0.1:8081" subsystem_name=endpoints INFO Starting UDS server address=/tmp/spire-registration.sock subsystem_name=endpoints
Check that the server is running:
$ bin/spire-server healthcheck Server is healthy.
Creating a join token to attest the agent to the server
A join token is one of the many available agent attestor methods. It is a one-time-use, pre-shared key that attests (authenticates) the SPIRE agent to the SPIRE server. Other agent attestation methods include AWS/GCP instance identity tokens and X.509 certificates. To see a complete list of available attestors, click here.
Generate a one-time-use token to use to attest the agent:
$ bin/spire-server token generate -spiffeID spiffe://example.org/myagent Token: <token_string>
Make a note of the token, you will need it in the next step to attest the agent on initial startup.
Starting the SPIRE Agent
SPIRE agents query the SPIRE server to attest (authenticate) nodes and workloads.
Use the token created in the previous step to start and attest the agent:
$ bin/spire-agent run -config conf/agent/agent.conf -joinToken <token_string> & ... INFO Starting workload API subsystem_name=endpoints
Check that the agent is running:
$ bin/spire-agent healthcheck Agent is healthy.
Create a registration policy for your workload
In order for SPIRE to identify a workload, you must register the workload with the SPIRE Server, via registration entries. Workload registration tells SPIRE how to identify the workload and which SPIFFE ID to give it.
$ bin/spire-server entry create -parentID spiffe://example.org/myagent \ -spiffeID spiffe://example.org/myservice -selector unix:uid:$(id -u) Entry ID : ac5e2354-596a-4059-85f7-5b76e3bb53b3 SPIFFE ID : spiffe://example.org/myservice Parent ID : spiffe://example.org/myagent TTL : 3600 Selector : unix:uid:501
unixis just one of the available workload attestation methods. To see a complete list of available attestors, click here.
Retrieve and view a x509-SVID
This command replicates the process that a workload would take to get an x509-SVID from the agent. The x509-SVID could be used to authenticate the workload to another workload. To fetch and write an x509-SVID to /tmp/:
$ bin/spire-agent api fetch x509 -write /tmp/ Received 1 bundle after 254.780649ms SPIFFE ID: spiffe://example.org/myservice SVID Valid After: 2019-10-25 19:07:49 +0000 UTC SVID Valid Until: 2019-10-25 20:07:21 +0000 UTC Intermediate #1 Valid After: 2019-10-25 19:07:11 +0000 UTC Intermediate #1 Valid Until: 2019-10-25 20:07:21 +0000 UTC CA #1 Valid After: 2018-05-13 19:33:47 +0000 UTC CA #1 Valid Until: 2023-05-12 19:33:47 +0000 UTC Writing SVID #0 to file /tmp/svid.0.pem. Writing key #0 to file /tmp/svid.0.key. Writing bundle #0 to file /tmp/bundle.0.pem.
You can use the
openssl command to view the contents of the SVID:
$ openssl x509 -in /tmp/svid.0.pem -text -noout Certificate: Data: Version: 3 (0x2) Serial Number: a2:76:ed:12:58:b0:1e:9f:9a:5b:42:60:b4:b1:52:b8 Signature Algorithm: ecdsa-with-SHA384 Issuer: C=US, O=SPIFFE Validity Not Before: Oct 25 19:07:49 2019 GMT Not After : Oct 25 20:07:21 2019 GMT Subject: C=US, O=SPIRE Subject Public Key Info: Public Key Algorithm: id-ecPublicKey Public-Key: (256 bit) pub: 04:62:3d:4f:3d:21:d1:cc:c4:8b:89:c8:b2:a9:f0: bd:88:89:3d:c3:a6:fe:25:27:18:6b:56:b2:2c:9c: 78:8c:40:cc:50:4d:e7:8a:8e:c0:c9:77:69:23:a6: ca:b7:97:42:dc:12:1c:1d:c7:82:26:8a:4e:d9:59: 0f:1e:15:ac:e8 ASN1 OID: prime256v1 NIST CURVE: P-256 X509v3 extensions: X509v3 Key Usage: critical Digital Signature, Key Encipherment, Key Agreement X509v3 Extended Key Usage: TLS Web Server Authentication, TLS Web Client Authentication X509v3 Basic Constraints: critical CA:FALSE X509v3 Subject Key Identifier: 9D:B4:3C:3A:D7:9C:3A:3D:FE:9D:00:47:5A:22:06:3B:95:4B:6A:40 X509v3 Authority Key Identifier: keyid:21:12:95:72:50:9E:B1:E5:BA:35:78:65:49:62:3C:0B:5C:4C:07:BD X509v3 Subject Alternative Name: URI:spiffe://example.org/myservice Signature Algorithm: ecdsa-with-SHA384 30:65:02:31:00:93:3c:f3:bd:cd:28:21:8f:dc:a9:bf:0b:41: 34:21:54:cb:15:a0:92:9d:89:f8:f8:cc:49:e5:b7:e3:bd:0b: 4f:a1:1a:46:ed:49:85:11:89:df:27:c1:06:72:7d:cd:bf:02: 30:7b:ab:99:9e:bd:5d:ea:0d:05:85:f6:4e:18:11:8c:2d:f3: de:07:b5:e7:b7:6b:fe:b2:97:9c:41:d4:31:dd:7f:10:be:e4: 75:ed:a4:bf:c3:ae:da:1d:28:4b:dc:2b:b5
- Review the SPIRE Documentation to learn how to configure SPIRE for your environment.