Ignore sockets when creating a tar stream of a layer #2222
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The go-tar implementation which is used cannot handle sockets. There's no good reason to preserve a socket, they are basically useless without the process which made them. Signed-off-by: Ian Campbell <[email protected]>
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Author
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If accepted would be good to have this in v1.0.x too I think. |
Codecov Report
@@ Coverage Diff @@
## master #2222 +/- ##
==========================================
+ Coverage 41.06% 41.09% +0.02%
==========================================
Files 66 66
Lines 7748 7751 +3
==========================================
+ Hits 3182 3185 +3
- Misses 4064 4065 +1
+ Partials 502 501 -1
Continue to review full report at Codecov.
|
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LGTM Would it be possible to create a test? Also, let’s backport this one. |
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Author
|
I'll have a look at a test now, I've got about 25 mins left today so it might be tomorrow before it is done. |
ijc
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to ijc/continuity
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Mar 22, 2018
I need this in order to test containerd/containerd#2222 Signed-off-by: Ian Campbell <[email protected]>
ijc
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to ijc/continuity
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Mar 22, 2018
I need this in order to test containerd/containerd#2222 Signed-off-by: Ian Campbell <[email protected]>
ijc
pushed a commit
to ijc/continuity
that referenced
this pull request
Mar 22, 2018
I need this in order to test containerd/containerd#2222 Signed-off-by: Ian Campbell <[email protected]>
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Author
|
I have a test now, but it depends on containerd/continuity#110. It looks like: diff --git a/archive/tar_test.go b/archive/tar_test.go
index 4d56d4e2..c94c9d37 100644
--- a/archive/tar_test.go
+++ b/archive/tar_test.go
@@ -1022,6 +1022,22 @@ func TestDiffTar(t *testing.T) {
fstest.CreateDir("/d3/", 0755),
),
},
+ {
+ name: "IgnoreSockets",
+ validators: []tarEntryValidator{
+ fileEntry("f2", []byte("content"), 0644),
+ // There should be _no_ socket here, despite the fstest.CreateSocket below
+ fileEntry("f3", []byte("content"), 0644),
+ },
+ a: fstest.Apply(
+ fstest.CreateFile("/f1", []byte("content"), 0644),
+ ),
+ b: fstest.Apply(
+ fstest.CreateFile("/f2", []byte("content"), 0644),
+ fstest.CreateSocket("/s0", 0644),
+ fstest.CreateFile("/f3", []byte("content"), 0644),
+ ),
+ },
}
for _, at := range tests { |
Signed-off-by: Derek McGowan <[email protected]>
mlaventure
approved these changes
Mar 22, 2018
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|
LGTM |
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Author
|
Awesome, thanks for sorting the test! |
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The go-tar implementation which is used cannot handle sockets.
There's no good reason to preserve a socket, they are basically useless without
the process which made them.
Signed-off-by: Ian Campbell [email protected]
I discovered this with https://github.com/dotnet/dotnet-docker-samples/tree/master/aspnetapp and buildkit's dockerfile frontend which gave:
While a
docker buildworks.