swarm

DockerSwarm/Creaate-Swarm.adoc

@@ -156,6 +156,7 @@ You can use the *--force* option on a manager to remove it from the swarm.
 ====
 
 The safe way to remove a manager from a swarm is to *demote* it to a worker and then direct it to leave the quorum without using --force
+
 ----
 docker node demote id
 ----
@@ -167,14 +168,79 @@ docker node demote id
 
 == Manage nodes
 
-- *docker node demote* 		Demote one or more nodes from manager in the swarm
-- *docker node inspect* 	Display detailed information on one or more nodes
 - *docker node ls* 		List nodes in the swarm
-- *docker node promote* 	Promote one or more nodes to manager in the swarm
-- *docker node ps* 		List tasks running on one or more nodes, defaults to current node
-- *docker node rm* 		Remove one or more nodes from the swarm
-- *docker node update* 		Update a node
 
+----
+docker node ls
+----
+
+- *docker node demote* 	`_	Demote one or more nodes from manager in the swarm_`
+- *docker node inspect* `_	Display detailed information on one or more nodes_`
+- *docker node promote* `_	Promote one or more nodes to manager in the swarm_~
+- *docker node ps* 	`_	List tasks running on one or more nodes, defaults to current node_`
+- *docker node rm* 	`_	Remove one or more nodes from the swarm_~
+- *docker node update* 	`_	Update a node_`
+- *docker node inspect* `_	Display detailed information on one or more nodes_`
+
+----
+docker node inspect id   # from ls
+----
+
+----
+[
+  {
+    "ID": "e216jshn25ckzbvmwlnh5jr3g",
+    "Version": {
+      "Index": 10
+    },
+    "CreatedAt": "2017-05-16T22:52:44.9910662Z",
+    "UpdatedAt": "2017-05-16T22:52:45.230878043Z",
+    "Spec": {
+      "Role": "manager",
+      "Availability": "active"
+    },
+    "Description": {
+      "Hostname": "swarm-manager",
+      "Platform": {
+        "Architecture": "x86_64",
+        "OS": "linux"
+      },
+      "Resources": {
+        "NanoCPUs": 1000000000,
+        "MemoryBytes": 1039843328
+      },
+      "Engine": {
+        "EngineVersion": "17.06.0-ce",
+        "Plugins": [
+          {
+            "Type": "Volume",
+    },
+    "Status": {
+      "State": "ready",
+      "Addr": "168.0.32.137"
+    },
+    "ManagerStatus": {
+      "Leader": true,
+      "Reachability": "reachable",
+      "Addr": "168.0.32.137:2377"
+    }
+  }
+]
+----
 
+[NOTE]
+.INFO
+====
+
+Filtering output with jq 
+
+.jq
+[source,sh]
+----
+apt update
+apt install jq
+docker node inspect id | jq -r '.[]["Status"]["State"]'
+----
+====