Age | Commit message (Collapse) | Author |
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Some of the testing setup for OCSP checking was wrong and
has been fixed too.
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The problem was introduced by commit 97a32bc (within PR #79696).
nixos/tests/common/ec2.nix:6:17 called with unexpected argument 'meta'
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- Use an acme user and group, allow group override only
- Use hashes to determine when certs actually need to regenerate
- Avoid running lego more than necessary
- Harden permissions
- Support "systemctl clean" for cert regeneration
- Support reuse of keys between some configuration changes
- Permissions fix services solves for previously root owned certs
- Add a note about multiple account creation and emails
- Migrate extraDomains to a list
- Deprecate user option
- Use minica for self-signed certs
- Rewrite all tests
I thought of a few more cases where things may go wrong,
and added tests to cover them. In particular, the web server
reload services were depending on the target - which stays alive,
meaning that the renewal timer wouldn't be triggering a reload
and old certs would stay on the web servers.
I encountered some problems ensuring that the reload took place
without accidently triggering it as part of the test. The sync
commands I added ended up being essential and I'm not sure why,
it seems like either node.succeed ends too early or there's an
oddity of the vm's filesystem I'm not aware of.
- Fix duplicate systemd rules on reload services
Since useACMEHost is not unique to every vhost, if one cert
was reused many times it would create duplicate entries in
${server}-config-reload.service for wants, before and
ConditionPathExists
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Co-authored-by: volth <volth@volth.com>
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The resolver is mainly useful for the ACME server, and acme.nix uses its
own DNS server to test DNS-01 challenges.
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This lets us get early warning about any bugs or backwards-compatibility
hazards in lego.
Pebble will default to this in the future, but doesn't currently;
see https://github.com/letsencrypt/pebble/blob/v2.3.0/README.md#strict-mode.
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Shimming out the Let's Encrypt domain name to reuse client configuration
doesn't work properly (Pebble uses different endpoint URL formats), is
recommended against by upstream,[1] and is unnecessary now that the ACME
module supports specifying an ACME server. This commit changes the tests
to use the domain name acme.test instead, and renames the letsencrypt
node to acme to reflect that it has nothing to do with the ACME server
that Let's Encrypt runs. The imports are renamed for clarity:
* nixos/tests/common/{letsencrypt => acme}/{common.nix => client}
* nixos/tests/common/{letsencrypt => acme}/{default.nix => server}
The test's other domain names are also adjusted to use *.test for
consistency (and to avoid misuse of non-reserved domain names such
as standalone.com).
[1] https://github.com/letsencrypt/pebble/issues/283#issuecomment-545123242
Co-authored-by: Yegor Timoshenko <yegortimoshenko@riseup.net>
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Merge remote-tracking branch 'remotes/upstream/master'
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This module allows root autoLogin, so we would break that for users, but
they shouldn't be using it anyways. This gives the impression like auto
is some special display manager, when it's just lightdm and special pam
rules to allow root autoLogin. It was created for NixOS's testing
so I believe this is where it belongs.
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Updates required:
- Use vpc image format (new default, supported by Amazon)
- Pass full image filename to makeEc2Test
- Increase memory allocation for nixos-rebuild
- Set a networking.hostName for services.httpd
- Add appropriate escaping in literal userdata
While I'm here, try to make it fail fast.
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A lot of tests assume that the alice user
will have a uid of 1000. Let's make that
a guarantee and be able to reference this value.
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The upstream session files display managers use have no concept of sessions being composed from
desktop manager and window manager. To be able to set upstream session files as default
session, we need a single option. Having two different ways to set default session would be confusing,
though, so we decided to deprecate the old method.
We also created separate script for each session, just like we already had a separate desktop
file for each one, and started using displayManager.sessionPackages mechanism to make the
session handling more uniform.
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The recent custom endpoint addition allows us to directly point
certbot to the custom Pebble directory endpoint.
Thanks to that, we can ditch the Pebble patch we were using so far;
making this test maintenance easier.
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Let's encrypt bumped ACME to V2. We need to update our nixos test to
be compatible with this new protocol version.
We decided to drop the Boulder ACME server in favor of the more
integration test friendly Pebble.
- overriding cacert not necessary
- this avoids rebuilding lots of packages needlessly
- nixos/tests/acme: use pebble's ca for client tests
- pebble always generates its own ca which has to be fetched
TODO: write proper commit msg :)
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treewide replacement of
stdenv.mkDerivation rec {
name = "*-${version}";
version = "*";
to pname
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Since the switch to check the nginx config with gixy in
59fac1a6d7e1983a1e7bd518129ff9ef39a013dd, the ACME test doesn't build
anymore, because gixy reports the following false-positive (reindented):
>> Problem: [alias_traversal] Path traversal via misconfigured alias.
Severity: MEDIUM
Description: Using alias in a prefixed location that doesn't ends with
directory separator could lead to path traversal
vulnerability.
Additional info: https://github.com/yandex/gixy/blob/master/docs/en/plugins/aliastraversal.md
Pseudo config:
server {
server_name letsencrypt.org;
location /documents/2017.11.15-LE-SA-v1.2.pdf {
alias /nix/store/y4h5ryvnvxkajkmqxyxsk7qpv7bl3vq7-2017.11.15-LE-SA-v1.2.pdf;
}
}
The reason this is a false-positive is because the destination is not a
directory, so something like "/foo.pdf../other.txt" won't work here,
because the resulting path would be ".../destfile.pdf../other.txt".
Nevertheless it's a good idea to use the exact match operator (=), to
not only shut up gixy but also gain a bit of performance in lookup (not
that it would matter in our test).
Signed-off-by: aszlig <aszlig@nix.build>
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As documented in the docs themselves :-)
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The Openstack metadata service exposes the EC2 API. We use the
existing `ec2.nix` module to configure the hostname and ssh keys of an
Openstack Instance.
A test checks the ssh server is well configured.
This is mainly to reduce the size of the image (700MB). Also,
declarative features provided by cloud-init are not really useful
since we would prefer to use our `configuration.nix` file instead.
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Also adding `system-sendmail` package for sharing the code with other
modules or packages needing it.
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This allows tests outside nixos to use acme setup.
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In 0c7c1660f78e4f6befe0a210e1a9efae783a1733 I have set allowSubstitutes
to false, which avoided the substitution of the certificates.
Unfortunately substitution may still happen later when the certificate
is merged with the CA bundle. So the merged CA bundle might be
substituted from a binary cache but the certificate itself is built
locally, which could result in a different certificate in the bundle.
So instead of adding just yet another workaround, I've now hardcoded all
the certificates and keys in a separate file. This also moves
letsencrypt.nix into its own directory so we don't mess up
nixos/tests/common too much.
This was long overdue and should finally make the dependency graph for
the ACME test more deterministic.
Signed-off-by: aszlig <aszlig@nix.build>
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Since e95f17e2720e67e2eabd59d7754c814d3e27a0b2, Go packages no longer
contain the source tree, however Boulder seems to need that as it
generates a few files during build.
Ideally we would only pick the files that are needed and put it into a
separate output, but I currently don't have time for this so I'm marking
this with XXX to get back to it later.
Signed-off-by: aszlig <aszlig@nix.build>
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tree-wide: users.extraUsers -> users.users, users.extraGroups -> users.groups
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If one of the certificates of the chain gets substituted from a binary
cache and the rest is generated locally it might turn out that we get
invalid certificates, which in turn cause tests using this module to
fail.
So let's set allowSubstitutes to false for all derivations that are
involved with certificate/key generation.
Signed-off-by: aszlig <aszlig@nix.build>
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... to prevent non-deterministic failures
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The enableSSL option has been deprecated in
a912a6a291eaa5f6a2ad9143c9e276779c357a41, so we switch to using onlySSL.
I've also explicitly disabled enableACME, because this is the default
and we don't actually want to have ACME enabled for a host which runs an
actual ACME server.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
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These modules implement a way to test ACME based on a test instance of
Letsencrypt's Boulder service. The service implementation is in
letsencrypt.nix and the second module (resolver.nix) is a support-module
for the former, but can also be used for tests not involving ACME.
The second module provides a DNS server which hosts a root zone
containing all the zones and /etc/hosts entries (except loopback) in the
entire test network, so this can be very useful for other modules that
need DNS resolution.
Originally, I wrote these modules for the Headcounter deployment, but
I've refactored them a bit to be generally useful to NixOS users. The
original implementation can be found here:
https://github.com/headcounter/deployment/tree/89e7feafb/modules/testing
Quoting parts from the commit message of the initial implementation of
the Letsencrypt module in headcounter/deployment@95dfb31110397567534f2:
This module is going to be used for tests where we need to
impersonate an ACME service such as the one from Letsencrypt within
VM tests, which is the reason why this module is a bit ugly (I only
care if it's working not if it's beautiful).
While the module isn't used anywhere, it will serve as a pluggable
module for testing whether ACME works properly to fetch certificates
and also as a replacement for our snakeoil certificate generator.
Also quoting parts of the commit where I have refactored the same module
in headcounter/deployment@85fa481b3431bbc450e8008fd25adc28ef0c6036:
Now we have a fully pluggable module which automatically discovers
in which network it's used via the nodes attribute.
The test environment of Boulder used "dns-test-srv", which is a fake
DNS server that's resolving almost everything to 127.0.0.1. On our
setup this is not useful, so instead we're now running a local BIND
name server which has a fake root zone and uses the mentioned node
attribute to automatically discover other zones in the network of
machines and generate delegations from the root zone to the
respective zones with the primaryIPAddress of the node.
...
We want to use real letsencrypt.org FQDNs here, so we can't get away
with the snakeoil test certificates from the upstream project but
now roll our own.
This not only has the benefit that we can easily pass the snakeoil
certificate to other nodes, but we can (and do) also use it for an
nginx proxy that's now serving HTTPS for the Boulder web front end.
The Headcounter deployment tests are simulating a production scenario
with real IPs and nameservers so it won't need to rely on
networking.extraHost. However in this implementation we don't
necessarily want to do that, so I've added auto-discovery of
networking.extraHosts in the resolver module.
Another change here is that the letsencrypt module now falls back to
using a local resolver, the Headcounter implementation on the other hand
always required to add an extra test node which serves as a resolver.
I could have squashed both modules into the final ACME test, but that
would make it not very reusable, so that's the main reason why I put
these modules in tests/common.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
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This is shorthand for setting group, createHome, home, useDefaultShell
and isSystemUser.
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