Export new prometheus metrics for the `notBefore` and `notAfter` fields
to track internal certificate validity periods when calling the `Load()`
method for a `*tls.Config`. Each metric is labeled with the `serial`
field.
```
tlsconfig_notafter_seconds{serial="2152072875247971686"} 1.664821961e+09
tlsconfig_notbefore_seconds{serial="2152072875247971686"} 1.664821960e+09
```
Fixes https://github.com/letsencrypt/boulder/issues/6829
The iotuil package has been deprecated since go1.16; the various
functions it provided now exist in the os and io packages. Replace all
instances of ioutil with either io or os, as appropriate.
This enables ocsp-responder to talk to the RA and request freshly signed
OCSP responses.
ocsp/responder/redis_source is moved to ocsp/responder/redis/redis_source.go
and significantly modified. Instead of assuming a response is always available
in Redis, it wraps a live-signing source. When a response is not available,
it attempts a live signing.
If live signing succeeds, the Redis responder returns the result right away
and attempts to write a copy to Redis on a goroutine using a background
context.
To make things more efficient, I eliminate an unneeded ocsp.ParseResponse
from the storage path. And I factored out a FakeResponse helper to make
the unittests more manageable.
Commits should be reviewable one-by-one.
Fixes#6191
The metadata values were planned to be used for scanning Redis in
ocsp-updater. Since we won't do that, remove it. Happily, this also
allows us to get rid of shortIssuerId.
Removing the issuer check in rocsp_sa.go uncovered a "boxed nil" problem:
SA was doing a nil check against an interface field that in practice was
never nil (because it was promoted from a concrete type at construction
time). So we would always hit the ROCSP path. But one of the first steps
in that path was looking up an issuer ID. Since `test/config` never
had the issuers set, we would look up the issuer ID, not find it, and
return an error before we attempted to call storeResponse. To fix this,
I made `NewSQLStorageAuthority` take a concrete `*rocsp.WritingClient`
instead of an interface, and check for nil before assigning it to an
internal interface field.
Built on top of #6201.
These new linters are almost all part of golangci-lint's collection
of default linters, that would all be running if we weren't setting
`disable-all: true`. By adding them, we now have parity with the
default configuration, as well as the additional linters we like.
Adds the following linters:
* unconvert
* deadcode
* structcheck
* typecheck
* varcheck
* wastedassign
This is a sort of proof of concept of the Redis interaction, which will
evolve into a tool for inspection and manual repair of missing entries,
if we find ourselves needing to do that.
The important bits here are rocsp/rocsp.go and
cmd/rocsp-tool/main.go. Also, the newly-vendored Redis client.