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network aliases for container creation

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podman can now support adding network aliases when running containers
(--network-alias).  It requires an updated dnsname plugin as well as an
updated ocicni to work properly.

Signed-off-by: baude <bbaude@redhat.com>
This commit is contained in:
baude
2020-10-29 15:54:33 -05:00
parent 110a1d8f25
commit b7b5b6f8e3
19 changed files with 255 additions and 66 deletions
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39
test/e2e/network_test.go
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@ -6,6 +6,7 @@ import (
"os"
"path/filepath"
"strings"
"time"
"github.com/containers/podman/v2/pkg/rootless"
. "github.com/containers/podman/v2/test/utils"
@ -351,4 +352,42 @@ var _ = Describe("Podman network", func() {
Expect(lines[0]).To(Equal(netName1))
Expect(lines[1]).To(Equal(netName2))
})
It("podman network with multiple aliases", func() {
Skip("Until DNSName is updated on our CI images")
var worked bool
netName := "aliasTest" + stringid.GenerateNonCryptoID()
session := podmanTest.Podman([]string{"network", "create", netName})
session.WaitWithDefaultTimeout()
Expect(session.ExitCode()).To(BeZero())
defer podmanTest.removeCNINetwork(netName)
top := podmanTest.Podman([]string{"run", "-dt", "--name=web", "--network=" + netName, "--network-alias=web1", "--network-alias=web2", nginx})
top.WaitWithDefaultTimeout()
Expect(top.ExitCode()).To(BeZero())
interval := time.Duration(250 * time.Millisecond)
// Wait for the nginx service to be running
for i := 0; i < 6; i++ {
// Test curl against the container's name
c1 := podmanTest.Podman([]string{"run", "--network=" + netName, nginx, "curl", "web"})
c1.WaitWithDefaultTimeout()
worked = Expect(c1.ExitCode()).To(BeZero())
if worked {
break
}
time.Sleep(interval)
interval *= 2
}
Expect(worked).To(BeTrue())
// Nginx is now running so no need to do a loop
// Test against the first alias
c2 := podmanTest.Podman([]string{"run", "--network=" + netName, nginx, "curl", "web1"})
c2.WaitWithDefaultTimeout()
Expect(c2.ExitCode()).To(BeZero())
// Test against the second alias
c3 := podmanTest.Podman([]string{"run", "--network=" + netName, nginx, "curl", "web2"})
c3.WaitWithDefaultTimeout()
Expect(c3.ExitCode()).To(BeZero())
})
})