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Huge thank-you to Tailscale (https://tailscale.com) for making this change possible!
This is a great feature for Caddy and Tailscale is a great fit for a standard implementation.
* caddytls: GetCertificate modules; Tailscale
* Caddyfile support for get_certificate
Also fix AP provisioning in case of empty subject list (persist loaded
module on struct, much like Issuers, to surive reprovisioning).
And implement start of HTTP cert getter, still WIP.
* Update modules/caddytls/automation.go
Co-authored-by: Francis Lavoie <lavofr@gmail.com>
* Use tsclient package, check status for name
* Implement HTTP cert getter
And use reuse CertMagic's PEM functions for private keys.
* Remove cache option from Tailscale getter
Tailscale does its own caching and we don't need the added complexity...
for now, at least.
* Several updates
- Option to disable cert automation in auto HTTPS
- Support multiple cert managers
- Remove cache feature from cert manager modules
- Minor improvements to auto HTTPS logging
* Run go mod tidy
* Try to get certificates from Tailscale implicitly
Only for domains ending in .ts.net.
I think this is really cool!
Co-authored-by: Francis Lavoie <lavofr@gmail.com>
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Including crucial CertMagic upgrade
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For auto-replace certificate on revocation for on-demand mode,
until a proper release is made.
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Ideally this needs to be fixed upstream in github.com/manifoldco/promptui, but it appears unmaintained. Our dependency is extremely indirect:
$ go mod why github.com/juju/ansiterm
# github.com/juju/ansiterm
github.com/caddyserver/caddy/v2/modules/caddypki
github.com/smallstep/certificates/authority
go.step.sm/cli-utils/ui
github.com/manifoldco/promptui
github.com/juju/ansiterm
And it appears that all dependencies in this chain are in conflict with the LGPL license.
Ref:
- https://github.com/manifoldco/promptui/issues/173
- https://github.com/manifoldco/promptui/pull/181
/cc @maraino
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The upgrade of smallstep/certificates fixes #4251. The upgrade of CertMagic fixes an issue reported in the forum that a longer timeout was confirmed to resolve (without any particular explanation, but oh well). Other upgrades have minor improvements and seem safe.
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Adds one more debug log
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Adds more debug logging
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See https://github.com/smallstep/nosql/issues/12 for context.
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* Update quic-go for go 1.17 support
* Complete quic-go update (go mod tidy)
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See https://github.com/smallstep/nosql/issues/12 for context.
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* Force auto-renew for OCSP revoked status (maybe) (fix #4191)
* Use latest commit
* go.mod: Use CertMagic v0.14.0 (fix #4191)
Correctly replaces revoked certificates
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Caddy can now generate and persist its own instance ID, a UUID that is stored in
the data directory.
This makes it possible to differentiate it from other instances in a cluster.
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golang.org/x/crypto/ssh/terminal is deprecated in favor of golang.org/x/term
See https://github.com/caddyserver/caddy/pull/4073/checks?check_run_id=2152150495
Error: SA1019: package golang.org/x/crypto/ssh/terminal is deprecated: this package moved to golang.org/x/term. (staticcheck)
See https://github.com/caddyserver/caddy/pull/4073/checks?check_run_id=2152228516
Error: SA1019: package golang.org/x/crypto/ssh/terminal is deprecated: this package moved to golang.org/x/term. (staticcheck)
Test: go test -count=1 './...'
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* ci: Build and test on Go 1.16
* ci: Drop Go 1.14 support
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I'm pretty sure this fixes a bug when the default email is used...
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This commits dds 3 separate, but very related features:
1. Automated server identity management
How do you know you're connecting to the server you think you are? How do you know the server connecting to you is the server instance you think it is? Mutually-authenticated TLS (mTLS) answers both of these questions. Using TLS to authenticate requires a public/private key pair (and the peer must trust the certificate you present to it).
Fortunately, Caddy is really good at managing certificates by now. We tap into that power to make it possible for Caddy to obtain and renew its own identity credentials, or in other words, a certificate that can be used for both server verification when clients connect to it, and client verification when it connects to other servers. Its associated private key is essentially its identity, and TLS takes care of possession proofs.
This configuration is simply a list of identifiers and an optional list of custom certificate issuers. Identifiers are things like IP addresses or DNS names that can be used to access the Caddy instance. The default issuers are ZeroSSL and Let's Encrypt, but these are public CAs, so they won't issue certs for private identifiers. Caddy will simply manage credentials for these, which other parts of Caddy can use, for example: remote administration or dynamic config loading (described below).
2. Remote administration over secure connection
This feature adds generic remote admin functionality that is safe to expose on a public interface.
- The "remote" (or "secure") endpoint is optional. It does not affect the standard/local/plaintext endpoint.
- It's the same as the [API endpoint on localhost:2019](https://caddyserver.com/docs/api), but over TLS.
- TLS cannot be disabled on this endpoint.
- TLS mutual auth is required, and cannot be disabled.
- The server's certificate _must_ be obtained and renewed via automated means, such as ACME. It cannot be manually loaded.
- The TLS server takes care of verifying the client.
- The admin handler takes care of application-layer permissions (methods and paths that each client is allowed to use).\
- Sensible defaults are still WIP.
- Config fields subject to change/renaming.
3. Dyanmic config loading at startup
Since this feature was planned in tandem with remote admin, and depends on its changes, I am combining them into one PR.
Dynamic config loading is where you tell Caddy how to load its config, and then it loads and runs that. First, it will load the config you give it (and persist that so it can be optionally resumed later). Then, it will try pulling its _actual_ config using the module you've specified (dynamically loaded configs are _not_ persisted to storage, since resuming them doesn't make sense).
This PR comes with a standard config loader module called `caddy.config_loaders.http`.
Caddyfile config for all of this can probably be added later.
COMMITS:
* admin: Secure socket for remote management
Functional, but still WIP.
Optional secure socket for the admin endpoint is designed
for remote management, i.e. to be exposed on a public
port. It enforces TLS mutual authentication which cannot
be disabled. The default port for this is :2021. The server
certificate cannot be specified manually, it MUST be
obtained from a certificate issuer (i.e. ACME).
More polish and sensible defaults are still in development.
Also cleaned up and consolidated the code related to
quitting the process.
* Happy lint
* Implement dynamic config loading; HTTP config loader module
This allows Caddy to load a dynamic config when it starts.
Dynamically-loaded configs are intentionally not persisted to storage.
Includes an implementation of the standard config loader, HTTPLoader.
Can be used to download configs over HTTP(S).
* Refactor and cleanup; prevent recursive config pulls
Identity management is now separated from remote administration.
There is no need to enable remote administration if all you want is identity
management, but you will need to configure identity management
if you want remote administration.
* Fix lint warnings
* Rename identities->identifiers for consistency
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Allows user to disable OCSP stapling (including support in the Caddyfile via the ocsp_stapling global option) or overriding responder URLs. Useful in environments where responders are not reachable due to firewalls.
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Has been deprecated for about 6 months now because it is broken.
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* metrics: allow disabling OpenMetrics negotiation
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* fixup! metrics: allow disabling OpenMetrics negotiation
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This allows for finer-grained control when choosing alternate chains than
simply the previous/Certbot-esque behavior of "choose first chain that
contains an issuer's common name." This update allows you to sort by
length (if optimizing for efficiency on the wire) and also to select the
chain with a specific root CommonName.
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see https://github.com/golang/go/issues/42534
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* caddytls: Support multiple issuers
Defaults are Let's Encrypt and ZeroSSL.
There are probably bugs.
* Commit updated integration tests, d'oh
* Update go.mod
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Signed-off-by: Dave Henderson <dhenderson@gmail.com>
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And #3391
Maybe also related: #3664
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Update internal issuer for compatibility -- yay simpler code!
The .1 version also fixes non-critical SAN extensions that caused trust
issues on several clients.
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* ci: Try Go 1.15 RC1 out of curiosity
* Go 1.15 was released; let's try it
* Update to latest quic-go
* Attempt at fixing broken test
Co-authored-by: Matthew Holt <mholt@users.noreply.github.com>
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* caddytls: Add support for ZeroSSL; add Caddyfile support for issuers
Configuring issuers explicitly in a Caddyfile is not easily compatible
with existing ACME-specific parameters such as email or acme_ca which
infer the kind of issuer it creates (this is complicated now because
the ZeroSSL issuer wraps the ACME issuer)... oh well, we can revisit
that later if we need to.
New Caddyfile global option:
{
cert_issuer <name> ...
}
Or, alternatively, as a tls subdirective:
tls {
issuer <name> ...
}
For example, to use ZeroSSL with an API key:
{
cert_issuser zerossl API_KEY
}
For now, that still uses ZeroSSL's ACME endpoint; it fetches EAB
credentials for you. You can also provide the EAB credentials directly
just like any other ACME endpoint:
{
cert_issuer acme {
eab KEY_ID MAC_KEY
}
}
All these examples use the new global option (or tls subdirective). You
can still use traditional/existing options with ZeroSSL, since it's
just another ACME endpoint:
{
acme_ca https://acme.zerossl.com/v2/DV90
acme_eab KEY_ID MAC_KEY
}
That's all there is to it. You just can't mix-and-match acme_* options
with cert_issuer, because it becomes confusing/ambiguous/complicated to
merge the settings.
* Fix broken test
This test was asserting buggy behavior, oops - glad this branch both
discovers and fixes the bug at the same time!
* Fix broken test (post-merge)
* Update modules/caddytls/acmeissuer.go
Fix godoc comment
Co-authored-by: Francis Lavoie <lavofr@gmail.com>
* Add support for ZeroSSL's EAB-by-email endpoint
Also transform the ACMEIssuer into ZeroSSLIssuer implicitly if set to
the ZeroSSL endpoint without EAB (the ZeroSSLIssuer is needed to
generate EAB if not already provided); this is now possible with either
an API key or an email address.
* go.mod: Use latest certmagic, acmez, and x/net
* Wrap underlying logic rather than repeating it
Oops, duh
* Form-encode email info into request body for EAB endpoint
Co-authored-by: Francis Lavoie <lavofr@gmail.com>
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