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registries.conf: prefixes: subdomain matching 

Mention that wildcarded prefixes match an arbitrary number of
subdomains.

Closes: #1397
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
This commit is contained in:
Valentin Rothberg 2022-03-24 11:47:47 +01:00
parent 4604555516
commit f93baa51d7
1 changed files with 2 additions and 0 deletions
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docs/containers-registries.conf.5.md
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@ -43,6 +43,8 @@ also include wildcarded subdomains in the format `*.example.com`.
The wildcard should only be present at the beginning as shown in the formats The wildcard should only be present at the beginning as shown in the formats
above. Other cases will not work. For example, `*.example.com` is valid but above. Other cases will not work. For example, `*.example.com` is valid but
`example.*.com`, `*.example.com/foo` and `*.example.com:5000/foo/bar:baz` are not. `example.*.com`, `*.example.com/foo` and `*.example.com:5000/foo/bar:baz` are not.
Note that `*` matches an arbitary number of subdomains. `*example.com` will hence
match `bar.example.com`, `foo.bar.example.com` and so on.
As a special case, the `prefix` field can be missing; if so, it defaults to the value As a special case, the `prefix` field can be missing; if so, it defaults to the value
of the `location` field (described below). of the `location` field (described below).