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Create and populate htpasswd file if missing #2362

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merged 1 commit into from
Aug 31, 2018

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liron-l
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@liron-l liron-l commented Aug 13, 2017

If htpasswd authentication option is configured but the htpasswd file is
missing, populate it with a default user and automatically generated
password.
The password will be printed to stdout.

Signed-off-by: Liron Levin liron@twistlock.com

liron-l pushed a commit to twistlock/distribution-library-image that referenced this pull request Aug 13, 2017
Replaced the default registry auth configuration from 'none' to
'htpasswd'.
Following the change in distribution/distribution#2362.

Signed-off-by: Liron Levin <liron@twistlock.com>
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codecov bot commented Aug 13, 2017

Codecov Report

Merging #2362 into master will decrease coverage by 9.63%.
The diff coverage is 45%.

Impacted file tree graph

@@            Coverage Diff             @@
##           master    #2362      +/-   ##
==========================================
- Coverage   60.34%   50.71%   -9.64%     
==========================================
  Files         126      126              
  Lines       14436    14472      +36     
==========================================
- Hits         8712     7340    -1372     
- Misses       4841     6381    +1540     
+ Partials      883      751     -132
Impacted Files Coverage Δ
registry/handlers/app.go 48.3% <100%> (ø) ⬆️
registry/auth/htpasswd/access.go 55.67% <43.58%> (-8.27%) ⬇️
registry/storage/driver/gcs/gcs.go 0.32% <0%> (-66.13%) ⬇️
registry/storage/driver/oss/oss.go 0.45% <0%> (-56.5%) ⬇️
registry/storage/driver/s3-aws/s3.go 4.07% <0%> (-55.4%) ⬇️
registry/storage/driver/s3-goamz/s3.go 0.4% <0%> (-52.4%) ⬇️
registry/client/transport/transport.go 68.75% <0%> (-13.75%) ⬇️

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@liron-l
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liron-l commented Aug 15, 2017

CC @dmcgowan

auth:
htpasswd:
realm: basic-realm
path: /auth/htpasswd
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would prefer to use /var/lib/registry or something under /etc for the examples

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Makes sense, I've put it under /etc/registry

if _, err := f.Write([]byte(fmt.Sprintf("docker:%s", string(encryptedPass[:])))); err != nil {
return err
}
logrus.Warnf("htpasswd is missing. provisioned with default user:docker password: %s", pass)
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This output looks kind of off

WARN[0000] htpasswd is missing. provisioned with default user:docker password: qakOn184C_WYgnUt7RDyE3xO7YrDkYhpqA9A2JbwIz0=

Maybe just getting rid of the space after password: would make it look more consistent. Also please use RawURLEncoding to get rid of the = at the end, some might find it confusing as to whether it is part of the password or part of an encoding.

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Makes sense. I've removed the space and replaced the encoding method.

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liron-l commented Aug 15, 2017

Thanks @dmcgowan, I've updated the review.

liron-l pushed a commit to twistlock/distribution-library-image that referenced this pull request Aug 15, 2017
Replaced the default registry auth configuration from 'none' to
'htpasswd'.
Following the change in distribution/distribution#2362.

Signed-off-by: Liron Levin <liron@twistlock.com>
@liron-l
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liron-l commented Aug 27, 2017

@dmcgowan PTAL

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liron-l commented Sep 7, 2017

@dmcgowan anything else I need to change?

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liron-l commented Oct 2, 2017

@tiborvass @dmcgowan PTAL.

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@tiborvass @stevvooe @dmcgowan what's required to get this merged?

@@ -111,6 +119,34 @@ func (ch challenge) Error() string {
return fmt.Sprintf("basic authentication challenge for realm %q: %s", ch.realm, ch.err)
}

// createHtpasswdFile creates and populates htpasswd file with a new user in case the file is missing
func createHtpasswdFile(path string) error {
if _, err := os.Open(path); os.IsNotExist(err) {
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Put the bulk of the work in the main path, not the indented path.

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Any other non-empty error should also be returned

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Thanks @stevvooe @dmcgowan fixed.

if _, err := f.Write([]byte(fmt.Sprintf("docker:%s", string(encryptedPass[:])))); err != nil {
return err
}
logrus.Warnf("htpasswd is missing. provisioned with default user:docker password:%s", pass)
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Please use the logging system already used throughout the registry. We don't access logrus directly.

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Also, use the field-based logging for these values, rather than just dumping them in the message.

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Thanks @stevvooe can I use GetLoggerWithFields? if so, fixed.

@dmcgowan dmcgowan added this to the Registry/2.7 milestone Oct 9, 2017
@liron-l liron-l force-pushed the populate_htpasswd branch 3 times, most recently from fdcbea8 to da7d5e3 Compare October 9, 2017 18:20
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liron-l commented Oct 9, 2017

Thanks @stevvooe @dmcgowan @endophage I've updated the PR according to your comments.

if _, err := f.Write([]byte(fmt.Sprintf("docker:%s", string(encryptedPass[:])))); err != nil {
return err
}
dcontext.GetLoggerWithFields(context.Background(), map[interface{}]interface{}{
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Also, this message should explain the "escape hatch", as this will confusing to those who have already ran the registry. I'll discuss the "escape hatch" more on distribution/distribution-library-image#58.

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@stevvooe but this config only apply if you start the registry with htpasswd enabled.
If you use REGISTRY_AUTH="" (or silly with realm) it is not enabled.

Is it OK to write
Disable default basic authentication by overriding the 'REGISTRY_AUTH' environment variable?

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@liron-l If you are using the registry behind a proxy, which is an extremely common deployment, this will break them and those users will panic. What do they do when this happens?

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@stevvooe I think the scenario you describe is relevant to the hub image change (which is indeed a breaking change).
However, here we just automatically populate the username/password when they are missing in basic auth scenario (like Jenkins does on default setup).

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Can you rebase this to get CI passing, circleci does not seem to be building from a merged branch even when I kicked it to run without cache

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liron-l commented Oct 11, 2017

Thanks @dmcgowan, The tests passed now.
I'm not sure the code coverage check is related to my change (they appear to be failing in other PRs)

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LGTM

If htpasswd authentication option is configured but the htpasswd file is
missing, populate it with a default user and automatically generated
password.
The password will be printed to stdout.

Signed-off-by: Liron Levin <liron@twistlock.com>
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jstoja commented Aug 6, 2018

Is this still okay for you @dmcgowan?

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LGTM

@dmp42 dmp42 merged commit 90705d2 into distribution:master Aug 31, 2018
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dmp42 commented Aug 31, 2018

@dmcgowan we broke something here. New PRs are not passing failing on gometalinter checks.

gometalinter --config .gometalinter.json ./...
registry/auth/htpasswd/access.go:1::warning: file is not goimported (goimports)
make: *** [check] Error 1

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dmcgowan commented Sep 4, 2018

We cannot merge old PRs that haven't run Travis, we can kick it off by opening a dummy PR with the change commit or having them rebased

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dmp42 commented Sep 5, 2018

@dmcgowan agreed.
My bad on this one.

@davidswu davidswu mentioned this pull request Sep 5, 2018
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7 participants