|
| 1 | +package suite |
| 2 | + |
| 3 | +import ( |
| 4 | + "bytes" |
| 5 | + "encoding/json" |
| 6 | + "log" |
| 7 | + "os/exec" |
| 8 | + |
| 9 | + . "github.com/onsi/ginkgo/v2" |
| 10 | + . "github.com/onsi/gomega" |
| 11 | + |
| 12 | + "github.com/itchyny/gojq" |
| 13 | +) |
| 14 | + |
| 15 | +var _ = Describe("version-checker", func() { |
| 16 | + BeforeEach(func() { |
| 17 | + cmd := exec.Command("kubectl", "apply", "-f", "./manifests/prom2json.yaml") |
| 18 | + cmd.Stdout = GinkgoWriter |
| 19 | + cmd.Stderr = GinkgoWriter |
| 20 | + Expect(cmd.Run()).NotTo(HaveOccurred()) |
| 21 | + cmd = exec.Command("kubectl", "wait", "--for=condition=Complete", "job", "-ljob-name=prom2json") |
| 22 | + cmd.Stdout = GinkgoWriter |
| 23 | + cmd.Stderr = GinkgoWriter |
| 24 | + Expect(cmd.Run()).NotTo(HaveOccurred()) |
| 25 | + }) |
| 26 | + AfterEach(func() { |
| 27 | + cmd := exec.Command("kubectl", "delete", "-f", "./manifests/prom2json.yaml") |
| 28 | + cmd.Stdout = GinkgoWriter |
| 29 | + cmd.Stderr = GinkgoWriter |
| 30 | + Expect(cmd.Run()).NotTo(HaveOccurred()) |
| 31 | + }) |
| 32 | + |
| 33 | + When("a Pod is deployed", func() { |
| 34 | + BeforeEach(func() { |
| 35 | + cmd := exec.Command("kubectl", "apply", "-f", "./manifests/image-from-reg.yaml") |
| 36 | + cmd.Stdout = GinkgoWriter |
| 37 | + cmd.Stderr = GinkgoWriter |
| 38 | + Expect(cmd.Run()).NotTo(HaveOccurred()) |
| 39 | + }) |
| 40 | + AfterEach(func() { |
| 41 | + cmd := exec.Command("kubectl", "delete", "-f", "./manifests/image-from-reg.yaml") |
| 42 | + cmd.Stdout = GinkgoWriter |
| 43 | + cmd.Stderr = GinkgoWriter |
| 44 | + Expect(cmd.Run()).NotTo(HaveOccurred()) |
| 45 | + }) |
| 46 | + }) |
| 47 | + |
| 48 | + It("it should get the current version", func() { |
| 49 | + buf := new(bytes.Buffer) |
| 50 | + cmd := exec.Command("kubectl", "logs", "-ljob-name=prom2json") |
| 51 | + cmd.Stdout = buf |
| 52 | + cmd.Stderr = GinkgoWriter |
| 53 | + Expect(cmd.Run()).NotTo(HaveOccurred()) |
| 54 | + |
| 55 | + //k logs -ljob-name=prom2json | jq '.[]|select(.name=="version_checker_is_latest_version")| .metrics[] | select(.labels.image=="docker-registry.registry.svc.cluster.local:5000/my-app") | .labels.current_version' |
| 56 | + //k logs -ljob-name=prom2json | jq '.[]|select(.name=="version_checker_is_latest_version")| .metrics[] | select(.labels.image=="docker-registry.registry.svc.cluster.local:5000/my-app") | .labels.latest_version' |
| 57 | + //k logs -ljob-name=prom2json | jq '.[]|select(.name=="version_checker_is_latest_version")| .metrics[] | select(.labels.image=="docker-registry.registry.svc.cluster.local:5000/my-app") | .value' |
| 58 | + query, err := gojq.Parse(".[]|select(.name==\"version_checker_is_latest_version\")| .metrics[] | select(.labels.image==\"docker-registry.registry.svc.cluster.local:5000/my-app\") | .labels.current_version") |
| 59 | + if err != nil { |
| 60 | + log.Fatalln(err) |
| 61 | + } |
| 62 | + var result []interface{} |
| 63 | + err = json.Unmarshal(buf.Bytes(), &result) |
| 64 | + if err != nil { |
| 65 | + log.Fatalln(err) |
| 66 | + } |
| 67 | + iter := query.Run(result) |
| 68 | + for { |
| 69 | + v, ok := iter.Next() |
| 70 | + if !ok { |
| 71 | + break |
| 72 | + } |
| 73 | + if err, ok := v.(error); ok { |
| 74 | + if err, ok := err.(*gojq.HaltError); ok && err.Value() == nil { |
| 75 | + break |
| 76 | + } |
| 77 | + log.Fatalln(err) |
| 78 | + } |
| 79 | + Expect(v).To(Equal("0.0.1")) |
| 80 | + } |
| 81 | + }) |
| 82 | + |
| 83 | + It("it should find a newer version", func() { |
| 84 | + buf := new(bytes.Buffer) |
| 85 | + cmd := exec.Command("kubectl", "logs", "-ljob-name=prom2json") |
| 86 | + cmd.Stdout = buf |
| 87 | + cmd.Stderr = GinkgoWriter |
| 88 | + Expect(cmd.Run()).NotTo(HaveOccurred()) |
| 89 | + |
| 90 | + //k logs -ljob-name=prom2json | jq '.[]|select(.name=="version_checker_is_latest_version")| .metrics[] | select(.labels.image=="docker-registry.registry.svc.cluster.local:5000/my-app") | .labels.current_version' |
| 91 | + //k logs -ljob-name=prom2json | jq '.[]|select(.name=="version_checker_is_latest_version")| .metrics[] | select(.labels.image=="docker-registry.registry.svc.cluster.local:5000/my-app") | .labels.latest_version' |
| 92 | + //k logs -ljob-name=prom2json | jq '.[]|select(.name=="version_checker_is_latest_version")| .metrics[] | select(.labels.image=="docker-registry.registry.svc.cluster.local:5000/my-app") | .value' |
| 93 | + query, err := gojq.Parse(".[]|select(.name==\"version_checker_is_latest_version\")| .metrics[] | select(.labels.image==\"docker-registry.registry.svc.cluster.local:5000/my-app\") | .labels.latest_version") |
| 94 | + if err != nil { |
| 95 | + log.Fatalln(err) |
| 96 | + } |
| 97 | + var result []interface{} |
| 98 | + err = json.Unmarshal(buf.Bytes(), &result) |
| 99 | + if err != nil { |
| 100 | + log.Fatalln(err) |
| 101 | + } |
| 102 | + iter := query.Run(result) |
| 103 | + for { |
| 104 | + v, ok := iter.Next() |
| 105 | + if !ok { |
| 106 | + break |
| 107 | + } |
| 108 | + if err, ok := v.(error); ok { |
| 109 | + if err, ok := err.(*gojq.HaltError); ok && err.Value() == nil { |
| 110 | + break |
| 111 | + } |
| 112 | + log.Fatalln(err) |
| 113 | + } |
| 114 | + Expect(v).To(Equal("0.0.2")) |
| 115 | + } |
| 116 | + }) |
| 117 | +}) |
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