func readRecordFromPod(oc *exutil.CLI, podName string) error {
// don't include _id field to output because it changes every time
findCmd := "rs.slaveOk(); printjson(db.test.find({}, {_id: 0}).toArray())"
fmt.Fprintf(g.GinkgoWriter, "DEBUG: reading record from the pod %v\n", podName)
mongoPod := dbutil.NewMongoDB(podName)
// pod is running but we need to wait when it will be really ready
// (will become a member of replica set and will finish data sync)
return exutil.WaitForQueryOutputContains(oc, mongoPod, 1*time.Minute, false, findCmd, `{ "status" : "passed" }`)
}
func tryToReadFromPod(oc *exutil.CLI, podName, expectedValue string) {
// don't include _id field to output because it changes every time
findCmd := "rs.slaveOk(); printjson(db.bar.find({}, {_id: 0}).toArray())"
fmt.Fprintf(g.GinkgoWriter, "DEBUG: reading record from pod %v\n", podName)
mongoPod := db.NewMongoDB(podName)
result, err := mongoPod.Query(oc, findCmd)
o.Expect(err).ShouldNot(o.HaveOccurred())
o.Expect(result).Should(o.ContainSubstring(expectedValue))
}
}
o.Expect(err).ShouldNot(o.HaveOccurred())
g.By("expecting the mongodb pod is running")
podNames, err := exutil.WaitForPods(
oc.KubeREST().Pods(oc.Namespace()),
exutil.ParseLabelsOrDie("name=mongodb"),
exutil.CheckPodIsRunningFn,
1,
1*time.Minute,
)
o.Expect(err).ShouldNot(o.HaveOccurred())
o.Expect(podNames).Should(o.HaveLen(1))
g.By("expecting the mongodb service is answering for ping")
mongo := db.NewMongoDB(podNames[0])
ok, err := mongo.IsReady(oc)
o.Expect(err).ShouldNot(o.HaveOccurred())
o.Expect(ok).Should(o.BeTrue())
g.By("expecting that we can insert a new record")
result, err := mongo.Query(oc, `db.foo.save({ "status": "passed" })`)
o.Expect(err).ShouldNot(o.HaveOccurred())
o.Expect(result).Should(o.ContainSubstring(`WriteResult({ "nInserted" : 1 })`))
g.By("expecting that we can read a record")
findCmd := "printjson(db.foo.find({}, {_id: 0}).toArray())" // don't include _id field to output because it changes every time
result, err = mongo.Query(oc, findCmd)
o.Expect(err).ShouldNot(o.HaveOccurred())
o.Expect(result).Should(o.ContainSubstring(`{ "status" : "passed" }`))
})
).Execute(),
).Should(o.Succeed())
g.By("waiting for pods to running")
podNames, err := exutil.WaitForPods(
oc.KubeREST().Pods(oc.Namespace()),
exutil.ParseLabelsOrDie("name=mongodb-replicaset"),
exutil.CheckPodIsRunningFn,
3,
2*time.Minute,
)
o.Expect(err).NotTo(o.HaveOccurred())
o.Expect(podNames).Should(o.HaveLen(3))
g.By("expecting that we can insert a new record on primary node")
mongo := dbutil.NewMongoDB(podNames[0])
replicaSet := mongo.(exutil.ReplicaSet)
_, err = replicaSet.QueryPrimary(oc, `db.test.save({ "status" : "passed" })`)
o.Expect(err).ShouldNot(o.HaveOccurred())
g.By("expecting that we can read a record from all members")
for _, podName := range podNames {
o.Expect(readRecordFromPod(oc, podName)).To(o.Succeed())
}
g.By("restarting replica set")
err = oc.Run("delete").Args("pods", "--all", "-n", oc.Namespace()).Execute()
o.Expect(err).ShouldNot(o.HaveOccurred())
g.By("waiting for restarting of the pods")
podNames, err = exutil.WaitForPods(