This commit adds jwt token support in v3 auth API.
Remaining major ToDos:
- Currently token type isn't hidden from etcdserver. In the near
future the information should be completely invisible from
etcdserver package.
- Configurable expiration of token. Currently tokens can be valid
until keys are changed.
How to use:
1. generate keys for signing and verfying jwt tokens:
$ openssl genrsa -out app.rsa 1024
$ openssl rsa -in app.rsa -pubout > app.rsa.pub
2. add command line options to etcd like below:
--auth-token-type jwt \
--auth-jwt-pub-key app.rsa.pub --auth-jwt-priv-key app.rsa \
--auth-jwt-sign-method RS512
3. launch etcd cluster
Below is a performance comparison of serializable read w/ and w/o jwt
token. Every (3) etcd node is executed on a single machine. Signing
method is RS512 and key length is 1024 bit. As the results show, jwt
based token introduces a performance overhead but it would be
acceptable for a case that requires authentication.
w/o jwt token auth (no auth):
Summary:
Total: 1.6172 secs.
Slowest: 0.0125 secs.
Fastest: 0.0001 secs.
Average: 0.0002 secs.
Stddev: 0.0004 secs.
Requests/sec: 6183.5877
Response time histogram:
0.000 [1] |
0.001 [9982] |∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎
0.003 [1] |
0.004 [1] |
0.005 [0] |
0.006 [0] |
0.008 [6] |
0.009 [0] |
0.010 [1] |
0.011 [5] |
0.013 [3] |
Latency distribution:
10% in 0.0001 secs.
25% in 0.0001 secs.
50% in 0.0001 secs.
75% in 0.0001 secs.
90% in 0.0002 secs.
95% in 0.0002 secs.
99% in 0.0003 secs.
w/ jwt token auth:
Summary:
Total: 2.5364 secs.
Slowest: 0.0182 secs.
Fastest: 0.0002 secs.
Average: 0.0003 secs.
Stddev: 0.0005 secs.
Requests/sec: 3942.5185
Response time histogram:
0.000 [1] |
0.002 [9975] |∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎
0.004 [0] |
0.006 [1] |
0.007 [11] |
0.009 [2] |
0.011 [4] |
0.013 [5] |
0.015 [0] |
0.016 [0] |
0.018 [1] |
Latency distribution:
10% in 0.0002 secs.
25% in 0.0002 secs.
50% in 0.0002 secs.
75% in 0.0002 secs.
90% in 0.0003 secs.
95% in 0.0003 secs.
99% in 0.0004 secs.
Keep more wal entries in memory for fast follower recovery.
10,000 was a too small number that triggers quite a few snapshots.
ZK proves that 100,000 is a reasonable number for even old less prowerful
machines.
Eventually we should provide both count and max memory (for large entries).
Added a new command line option to etcd server to read in a YAML
based configuration file. I've also added an example configuration
file with comments and a set of test cases.
This commit adds a new option for activating profiling based on pprof
in etcd process.
- -enable-pprof: boolean type option which activates profiling
For example, if a client URL is http://localhost:12379, users and
developers access heap profiler with this URL:
http://localhost:12379/debug/pprof/heap
Based on the configuration doc, seems these two flags are missing
in the help. So add them and the descriptions are from config.go in
the same directory.
Signed-off-by: Yiqiao Pu <ypu@redhat.com>
Before this PR, people can set listen-client-urls without setting
advertise-client-urls, and leaves advertise-client-urls as default
localhost value. The client libraries which sync the cluster info
fetch wrong advertise-client-urls and cannot connect to the cluster.
This PR avoids this case and provides better UX.
On the other hand, this change is safe because people always want to set
advertise-client-urls if listen-client-urls is set. The default localhost
advertise url cannot be accessed from the outside, and should always be
set except that etcd is bootstrapped with no flag.
