watchtower/internal/actions/update_test.go
2021-04-28 14:35:38 +02:00

317 lines
8.3 KiB
Go

package actions_test
import (
"github.com/containrrr/watchtower/internal/actions"
. "github.com/containrrr/watchtower/internal/actions/mocks"
"github.com/containrrr/watchtower/pkg/container"
"github.com/containrrr/watchtower/pkg/container/mocks"
"github.com/containrrr/watchtower/pkg/metrics"
"github.com/containrrr/watchtower/pkg/sorter"
"github.com/containrrr/watchtower/pkg/types"
container2 "github.com/docker/docker/api/types/container"
cli "github.com/docker/docker/client"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"time"
)
var _ = Describe("the update action", func() {
var dockerClient cli.CommonAPIClient
var client MockClient
BeforeEach(func() {
server := mocks.NewMockAPIServer()
dockerClient, _ = cli.NewClientWithOpts(
cli.WithHost(server.URL),
cli.WithHTTPClient(server.Client()))
})
When("watchtower has been instructed to clean up", func() {
BeforeEach(func() {
pullImages := false
removeVolumes := false
client = CreateMockClient(
&TestData{
NameOfContainerToKeep: "test-container-02",
Containers: []container.Container{
CreateMockContainer(
"test-container-01",
"test-container-01",
"fake-image:latest",
time.Now().AddDate(0, 0, -1),
nil),
CreateMockContainer(
"test-container-02",
"test-container-02",
"fake-image:latest",
time.Now(),
nil),
CreateMockContainer(
"test-container-02",
"test-container-02",
"fake-image:latest",
time.Now(),
nil),
},
},
dockerClient,
pullImages,
removeVolumes,
)
})
//When("there are multiple containers using the same image", func() {
// It("should only try to remove the image once", func() {
//
// _, err := actions.Update(client, types.UpdateParams{Cleanup: true})
// Expect(err).NotTo(HaveOccurred())
// Expect(client.TestData.TriedToRemoveImageCount).To(Equal(1))
// })
// When("performing a rolling restart update", func() {
// It("should try to remove the image once", func() {
//
// _, err := actions.Update(client, types.UpdateParams{Cleanup: true, RollingRestart: true})
// Expect(err).NotTo(HaveOccurred())
// Expect(client.TestData.TriedToRemoveImageCount).To(Equal(1))
// })
// })
//})
When("there are multiple containers using different images", func() {
It("should try to remove each of them", func() {
client.TestData.Containers = append(
client.TestData.Containers,
CreateMockContainer(
"unique-test-container",
"unique-test-container",
"unique-fake-image:latest",
time.Now(),
nil,
),
)
_, err := actions.Update(client, types.UpdateParams{Cleanup: true})
Expect(err).NotTo(HaveOccurred())
Expect(client.TestData.TriedToRemoveImageCount).To(Equal(2))
})
})
})
When("there are containers with and without links", func() {
links := [7][]string{
{},
{"k-container-01"},
{"k-container-02"},
{},
{"t-container-01"},
{"t-container-02"},
{},
}
BeforeEach(func() {
pullImages := false
removeVolumes := false
client = CreateMockClient(
&TestData{
NameOfContainerToKeep: "",
Containers: []container.Container{
CreateMockContainer(
"k-container-03",
"k-container-03",
"fake-image:latest",
time.Now().Add(time.Second*4),
links[2]),
CreateMockContainer(
"k-container-02",
"k-container-02",
"fake-image:latest",
time.Now().Add(time.Second*2),
links[1]),
CreateMockContainer(
"k-container-01",
"k-container-01",
"fake-image:latest",
time.Now(),
links[0]),
CreateMockContainer(
"t-container-03",
"t-container-03",
"fake-image-2:latest",
time.Now().Add(time.Second*4),
links[5]),
CreateMockContainer(
"t-container-02",
"t-container-02",
"fake-image-2:latest",
time.Now().Add(time.Second*2),
links[4]),
CreateMockContainer(
"t-container-01",
"t-container-01",
"fake-image-2:latest",
time.Now(),
links[3]),
CreateMockContainer(
"x-container-01",
"x-container-01",
"fake-image-1:latest",
time.Now(),
links[6]),
CreateMockContainer(
"x-container-02",
"x-container-02",
"fake-image-1:latest",
time.Now().Add(time.Second*2),
links[6]),
CreateMockContainer(
"x-container-03",
"x-container-03",
"fake-image-1:latest",
time.Now().Add(time.Second*4),
links[6]),
},
},
dockerClient,
pullImages,
removeVolumes,
)
})
When("there are multiple containers with links", func() {
It("should create appropriate dependency sorted lists", func() {
metric := &metrics.Metric{}
containers, err := actions.ScanForContainerUpdates(client, types.UpdateParams{Cleanup: true}, metric)
undirectedNodes := actions.CreateUndirectedLinks(containers)
dependencySortedGraphs, err := sorter.SortByDependencies(containers, undirectedNodes)
Expect(err).NotTo(HaveOccurred())
var output [][]string
for _, i := range dependencySortedGraphs {
var inner []string
for _, j := range i {
inner = append(inner, j.Name())
}
output = append(output, inner)
}
ExpectedOutput := [][]string{
{"k-container-01", "k-container-02", "k-container-03"},
{"t-container-01", "t-container-02", "t-container-03"},
{"x-container-01"},
{"x-container-02"},
{"x-container-03"},
}
Expect(output).To(Equal(ExpectedOutput))
})
})
When("there are multiple containers using the same image", func() {
It("should stop and restart containers in a correct order", func() {
_, err := actions.Update(client, types.UpdateParams{Cleanup: true})
Expect(err).NotTo(HaveOccurred())
ExpectedStopOutput := []string{
"k-container-03",
"k-container-02",
"k-container-01",
"t-container-03",
"t-container-02",
"t-container-01",
"x-container-01",
"x-container-02",
"x-container-03",
}
ExpectedRestartOutput := []string{
"k-container-01",
"k-container-02",
"k-container-03",
"t-container-01",
"t-container-02",
"t-container-03",
"x-container-01",
"x-container-02",
"x-container-03",
}
Expect(client.TestData.StopOrder).To(Equal(ExpectedStopOutput))
Expect(client.TestData.RestartOrder).To(Equal(ExpectedRestartOutput))
})
})
})
When("watchtower has been instructed to monitor only", func() {
When("certain containers are set to monitor only", func() {
BeforeEach(func() {
client = CreateMockClient(
&TestData{
NameOfContainerToKeep: "test-container-02",
Containers: []container.Container{
CreateMockContainer(
"test-container-01",
"test-container-01",
"fake-image1:latest",
time.Now(),
nil),
CreateMockContainerWithConfig(
"test-container-02",
"test-container-02",
"fake-image2:latest",
time.Now(),
&container2.Config{
Labels: map[string]string{
"com.centurylinklabs.watchtower.monitor-only": "true",
},
}),
},
},
dockerClient,
false,
false,
)
})
It("should not update those containers", func() {
_, err := actions.Update(client, types.UpdateParams{Cleanup: true})
Expect(err).NotTo(HaveOccurred())
Expect(client.TestData.TriedToRemoveImageCount).To(Equal(1))
})
})
When("monitor only is set globally", func() {
BeforeEach(func() {
client = CreateMockClient(
&TestData{
Containers: []container.Container{
CreateMockContainer(
"test-container-01",
"test-container-01",
"fake-image:latest",
time.Now(),
nil),
CreateMockContainer(
"test-container-02",
"test-container-02",
"fake-image:latest",
time.Now(),
nil),
},
},
dockerClient,
false,
false,
)
})
It("should not update any containers", func() {
_, err := actions.Update(client, types.UpdateParams{MonitorOnly: true})
Expect(err).NotTo(HaveOccurred())
Expect(client.TestData.TriedToRemoveImageCount).To(Equal(0))
})
})
})
})