End 2 End tests speedup (#1180)

* Improving end 2 end tests, especially speed of execution and error, by implementing proper eventual asserts and timeouts.
* Add documentation for running individual tests
* Fixed String encoding in Patorni state check and error case
* Printing config as multi log line entity, makes it readable and grepable on startup
* Cosmetic changes to logs. Removed quotes from diff. Move all object diffs to text diff. Enabled padding for log level.
* Mount script with tools for easy logaccess and watching objects.
* Set proper update strategy for Postgres operator deployment.
* Move long running test to end. Move pooler test to new functions.
* Remove quote from valid K8s identifiers.

pkg/cluster/k8sres.go

@@ -1157,7 +1157,9 @@ func (c *Cluster) generateStatefulSet(spec *acidv1.PostgresSpec) (*appsv1.Statef
 	}
 
 	// generate the spilo container
-	c.logger.Debugf("Generating Spilo container, environment variables: %v", spiloEnvVars)
+	c.logger.Debugf("Generating Spilo container, environment variables")
+	c.logger.Debugf("%v", spiloEnvVars)
+
 	spiloContainer := generateContainer(c.containerName(),
 		&effectiveDockerImage,
 		resourceRequirements,
@@ -2055,7 +2057,8 @@ func (c *Cluster) generateLogicalBackupPodEnvVars() []v1.EnvVar {
 		envVars = append(envVars, v1.EnvVar{Name: "AWS_SECRET_ACCESS_KEY", Value: c.OpConfig.LogicalBackup.LogicalBackupS3SecretAccessKey})
 	}
 
-	c.logger.Debugf("Generated logical backup env vars %v", envVars)
+	c.logger.Debugf("Generated logical backup env vars")
+	c.logger.Debugf("%v", envVars)
 	return envVars
 }