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0b592467d9
Ensure data-race-free access to the daemon configuration without locking by mutating a deep copy of the config and atomically storing a pointer to the copy into the daemon-wide configStore value. Any operations which need to read from the daemon config must capture the configStore value only once and pass it around to guarantee a consistent view of the config. Signed-off-by: Cory Snider <csnider@mirantis.com>
37 lines
932 B
Go
37 lines
932 B
Go
package daemon // import "github.com/docker/docker/daemon"
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import (
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"testing"
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containertypes "github.com/docker/docker/api/types/container"
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"github.com/docker/docker/container"
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"github.com/docker/docker/daemon/config"
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"gotest.tools/v3/assert"
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is "gotest.tools/v3/assert/cmp"
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)
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func TestGetInspectData(t *testing.T) {
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c := &container.Container{
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ID: "inspect-me",
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HostConfig: &containertypes.HostConfig{},
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State: container.NewState(),
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ExecCommands: container.NewExecStore(),
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}
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d := &Daemon{
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linkIndex: newLinkIndex(),
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}
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if d.UsesSnapshotter() {
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t.Skip("does not apply to containerd snapshotters, which don't have RWLayer set")
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}
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cfg := &config.Config{}
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d.configStore.Store(cfg)
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_, err := d.getInspectData(cfg, c)
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assert.Check(t, is.ErrorContains(err, "RWLayer of container inspect-me is unexpectedly nil"))
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c.Dead = true
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_, err = d.getInspectData(cfg, c)
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assert.Check(t, err)
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}
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