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system df: fix image-size calculations

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Fix two bugs in `system df`:

1.  The total size was calculated incorrectly as it was creating the sum
    of all image sizes but did not consider that a) the same image may
    be listed more than once (i.e., for each repo-tag pair), and that
    b) images share layers.

    The total size is now calculated directly in `libimage` by taking
    multi-layer use into account.

2.  The reclaimable size was calculated incorrectly.  This number
    indicates which data we can actually remove which means the total
    size minus what containers use (i.e., the "unique" size of the image
    in use by containers).

NOTE: The c/storage version is pinned back to the previous commit as it
      is buggy.  c/common already requires the buggy version, so use a
      `replace` to force/pin.

Fixes: #16135
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
This commit is contained in:
Valentin Rothberg
2022-10-17 16:53:48 +02:00
parent 2fb7218e63
commit 34235b2726
50 changed files with 284 additions and 210 deletions
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11
vendor/github.com/containers/common/libnetwork/resolvconf/resolvconf.go generated vendored
View File

@ -40,12 +40,11 @@ var (
)
// filterResolvDNS cleans up the config in resolvConf. It has two main jobs:
// 1. If a netns is enabled, it looks for localhost (127.*|::1) entries in the provided
// resolv.conf, removing local nameserver entries, and, if the resulting
// cleaned config has no defined nameservers left, adds default DNS entries
// 2. Given the caller provides the enable/disable state of IPv6, the filter
// code will remove all IPv6 nameservers if it is not enabled for containers
//
// 1. If a netns is enabled, it looks for localhost (127.*|::1) entries in the provided
// resolv.conf, removing local nameserver entries, and, if the resulting
// cleaned config has no defined nameservers left, adds default DNS entries
// 2. Given the caller provides the enable/disable state of IPv6, the filter
// code will remove all IPv6 nameservers if it is not enabled for containers
func filterResolvDNS(resolvConf []byte, ipv6Enabled bool, netnsEnabled bool) []byte {
// If we're using the host netns, we have nothing to do besides hash the file.
if !netnsEnabled {