docs: update sealer command document via cobra

docs/commandline/sealer.md

@@ -1,35 +1,51 @@
 ## sealer
 
+A tool to build, share and run any distributed applications.
+
+### Synopsis
+
+sealer is a tool to seal application's all dependencies and Kubernetes
+into ClusterImage by Kubefile, distribute this application anywhere via ClusterImage, 
+and run it within any cluster with Clusterfile in one command.
 
 
 ### Options
 
 ```
-      --config string   config file (default is $HOME/.sealer.json)
+      --config string   config file of sealer tool (default is $HOME/.sealer.json)
   -d, --debug           turn on debug mode
   -h, --help            help for sealer
+      --hide-path       hide the log path
+      --hide-time       hide the log time
   -t, --toggle          Help message for toggle
 ```
 
 ### SEE ALSO
 
-* [sealer apply](sealer_apply.md)	 - apply a kubernetes cluster
-* [sealer build](sealer_build.md)	 - ClusterImage local build command line
-* [sealer check](sealer_check.md)	 - check the state of cluster 
+* [sealer apply](sealer_apply.md)	 - apply a Kubernetes cluster via specified Clusterfile
+* [sealer build](sealer_build.md)	 - build a ClusterImage from a Kubefile
+* [sealer cert](sealer_cert.md)	 - update Kubernetes API server's cert
+* [sealer check](sealer_check.md)	 - check the state of cluster
 * [sealer completion](sealer_completion.md)	 - generate autocompletion script for bash
-* [sealer debug](sealer_debug.md)	 - Creating debugging sessions for pods and nodes
-* [sealer delete](sealer_delete.md)	 - delete a cluster
-* [sealer gen-doc](sealer_gen-doc.md)	 - Generate document for sealer CLI with MarkDown format
-* [sealer images](sealer_images.md)	 - list all ClusterImages
-* [sealer inspect](sealer_inspect.md)	 - print the image information or clusterFile
-* [sealer join](sealer_join.md)	 - join node to cluster
-* [sealer load](sealer_load.md)	 - load image
-* [sealer login](sealer_login.md)	 - login image repositories
-* [sealer pull](sealer_pull.md)	 - pull ClusterImage to local
-* [sealer push](sealer_push.md)	 - push ClusterImage to registry
-* [sealer rmi](sealer_rmi.md)	 - Remove local images by name or ID
-* [sealer run](sealer_run.md)	 - run a cluster with images and arguments
-* [sealer save](sealer_save.md)	 - save image
-* [sealer tag](sealer_tag.md)	 - tag IMAGE[:TAG] TARGET_IMAGE[:TAG]
-* [sealer version](sealer_version.md)	 - version
+* [sealer debug](sealer_debug.md)	 - Create debugging sessions for pods and nodes
+* [sealer delete](sealer_delete.md)	 - delete an existing cluster
+* [sealer exec](sealer_exec.md)	 - exec a shell command or script on specified nodes.
+* [sealer gen](sealer_gen.md)	 - generate a Clusterfile to take over a normal cluster which is not deployed by sealer
+* [sealer gen-doc](sealer_gen-doc.md)	 - generate document for sealer CLI with MarkDown format
+* [sealer images](sealer_images.md)	 - list all ClusterImages on the local node
+* [sealer inspect](sealer_inspect.md)	 - print the image information or Clusterfile
+* [sealer join](sealer_join.md)	 - join new master or worker node to specified cluster
+* [sealer load](sealer_load.md)	 - load a ClusterImage from a tar file
+* [sealer login](sealer_login.md)	 - login image registry
+* [sealer merge](sealer_merge.md)	 - merge multiple images into one
+* [sealer prune](sealer_prune.md)	 - prune sealer data dir
+* [sealer pull](sealer_pull.md)	 - pull ClusterImage from a registry to local
+* [sealer push](sealer_push.md)	 - push ClusterImage to remote registry
+* [sealer rmi](sealer_rmi.md)	 - remove local images by name
+* [sealer run](sealer_run.md)	 - start to run a cluster from a ClusterImage
+* [sealer save](sealer_save.md)	 - save ClusterImage to a tar file
+* [sealer search](sealer_search.md)	 - search ClusterImage in default registry
+* [sealer tag](sealer_tag.md)	 - create a new tag that refers to a local ClusterImage
+* [sealer upgrade](sealer_upgrade.md)	 - upgrade specified Kubernetes cluster
+* [sealer version](sealer_version.md)	 - show sealer and related versions
 

docs/commandline/sealer_apply.md

@@ -1,6 +1,12 @@
 ## sealer apply
 
-apply a kubernetes cluster
+apply a Kubernetes cluster via specified Clusterfile
+
+### Synopsis
+
+apply command is used to apply a Kubernetes cluster via specified Clusterfile.
+If the Clusterfile is applied first time, Kubernetes cluster will be created. Otherwise, sealer
+will apply the diff change of current Clusterfile and the original one.
 
 ```
 sealer apply [flags]
@@ -15,18 +21,21 @@ sealer apply -f Clusterfile
 ### Options
 
 ```
-  -f, --Clusterfile string   apply a kubernetes cluster (default "Clusterfile")
+  -f, --Clusterfile string   Clusterfile path to apply a Kubernetes cluster (default "Clusterfile")
+      --force                force to delete the specified cluster if set true
   -h, --help                 help for apply
 ```
 
 ### Options inherited from parent commands
 
 ```
-      --config string   config file (default is $HOME/.sealer.json)
+      --config string   config file of sealer tool (default is $HOME/.sealer.json)
   -d, --debug           turn on debug mode
+      --hide-path       hide the log path
+      --hide-time       hide the log time
 ```
 
 ### SEE ALSO
 
-* [sealer](sealer.md)	 - 
+* [sealer](sealer.md)	 - A tool to build, share and run any distributed applications.
 

docs/commandline/sealer_build.md

@@ -1,10 +1,12 @@
 ## sealer build
 
-ClusterImage local build command line
+build a ClusterImage from a Kubefile
 
 ### Synopsis
 
-sealer build -f Kubefile -t my-kubernetes:1.19.9 [--mode cloud|container|lite] [--no-cache]
+build command is used to build a ClusterImage from specified Kubefile.
+It organizes the specified Kubefile and input building context, and builds
+a brand new ClusterImage.
 
 ```
 sealer build [flags] PATH
@@ -13,40 +15,45 @@ sealer build [flags] PATH
 ### Examples
 
 ```
-the current path is the context path ,default build type is cloud and use build cache
+the current path is the context path, default build type is lite and use build cache
 
-cloud build :
-	sealer build -f Kubefile -t my-kubernetes:1.19.9
+build:
+	sealer build -f Kubefile -t my-kubernetes:1.19.8 .
 
-container build :
-	sealer build -f Kubefile -t my-kubernetes:1.19.9 -m container
+build without cache:
+	sealer build -f Kubefile -t my-kubernetes:1.19.8 --no-cache .
 
-lite build:
-	sealer build -f Kubefile -t my-kubernetes:1.19.9 --mode lite
+build without base:
+	sealer build -f Kubefile -t my-kubernetes:1.19.8 --base=false .
 
-build without cache:
-	sealer build -f Kubefile -t my-kubernetes:1.19.9 --no-cache
+build with args:
+	sealer build -f Kubefile -t my-kubernetes:1.19.8 --build-arg MY_ARG=abc,PASSWORD=Sealer123 .
 
 ```
 
 ### Options
 
 ```
-  -m, --mode string   ClusterImage build type,default is cloud
-  -h, --help               help for build
-  -t, --imageName string   ClusterImage name
-  -f, --kubefile string    kubefile filepath (default "Kubefile")
-      --no-cache           build without cache
+      --base                build with base image, default value is true. (default true)
+      --build-arg strings   set custom build args
+  -h, --help                help for build
+  -t, --imageName string    the name of ClusterImage
+  -f, --kubefile string     Kubefile filepath (default "Kubefile")
+  -m, --mode string         ClusterImage build type, default is lite (default "lite")
+      --no-cache            build without cache
+      --platform string     set ClusterImage platform. If not set, keep same platform with runtime
 ```
 
 ### Options inherited from parent commands
 
 ```
-      --config string   config file (default is $HOME/.sealer.json)
+      --config string   config file of sealer tool (default is $HOME/.sealer.json)
   -d, --debug           turn on debug mode
+      --hide-path       hide the log path
+      --hide-time       hide the log time
 ```
 
 ### SEE ALSO
 
-* [sealer](sealer.md)	 - 
+* [sealer](sealer.md)	 - A tool to build, share and run any distributed applications.
 

docs/commandline/sealer_cert.md

@@ -0,0 +1,43 @@
+## sealer cert
+
+update Kubernetes API server's cert
+
+### Synopsis
+
+Add domain or ip in certs:
+    you had better backup old certs first.
+	sealer cert --alt-names sealer.cool,10.103.97.2,127.0.0.1,localhost
+    using "openssl x509 -noout -text -in apiserver.crt" to check the cert
+	will update cluster API server cert, you need to restart your API server manually after using sealer cert.
+
+    For example: add an EIP to cert.
+    1. sealer cert --alt-names 39.105.169.253
+    2. update the kubeconfig, cp /etc/kubernetes/admin.conf .kube/config
+    3. edit .kube/config, set the apiserver address as 39.105.169.253, (don't forget to open the security group port for 6443, if you using public cloud)
+    4. kubectl get pod, to check if it works or not
+
+
+```
+sealer cert [flags]
+```
+
+### Options
+
+```
+      --alt-names string   add domain or ip in certs, sealer.cool or 10.103.97.2
+  -h, --help               help for cert
+```
+
+### Options inherited from parent commands
+
+```
+      --config string   config file of sealer tool (default is $HOME/.sealer.json)
+  -d, --debug           turn on debug mode
+      --hide-path       hide the log path
+      --hide-time       hide the log time
+```
+
+### SEE ALSO
+
+* [sealer](sealer.md)	 - A tool to build, share and run any distributed applications.
+

docs/commandline/sealer_check.md

@@ -1,6 +1,11 @@
 ## sealer check
 
-check the state of cluster 
+check the state of cluster
+
+### Synopsis
+
+check command is used to check status of the cluster, including node status
+, service status and pod status.
 
 ```
 sealer check [flags]
@@ -23,11 +28,13 @@ sealer check --pre or sealer check --post
 ### Options inherited from parent commands
 
 ```
-      --config string   config file (default is $HOME/.sealer.json)
+      --config string   config file of sealer tool (default is $HOME/.sealer.json)
   -d, --debug           turn on debug mode
+      --hide-path       hide the log path
+      --hide-time       hide the log time
 ```
 
 ### SEE ALSO
 
-* [sealer](sealer.md)	 - 
+* [sealer](sealer.md)	 - A tool to build, share and run any distributed applications.
 

docs/commandline/sealer_completion.md

@@ -29,11 +29,13 @@ sealer completion
 ### Options inherited from parent commands
 
 ```
-      --config string   config file (default is $HOME/.sealer.json)
+      --config string   config file of sealer tool (default is $HOME/.sealer.json)
   -d, --debug           turn on debug mode
+      --hide-path       hide the log path
+      --hide-time       hide the log time
 ```
 
 ### SEE ALSO
 
-* [sealer](sealer.md)	 - 
+* [sealer](sealer.md)	 - A tool to build, share and run any distributed applications.
 

docs/commandline/sealer_debug.md

@@ -1,11 +1,11 @@
 ## sealer debug
 
-Creating debugging sessions for pods and nodes
+Create debugging sessions for pods and nodes
 
 ### Options
 
 ```
-      --check-list strings         Check items, such as network、volume.
+      --check-list strings         Check items, such as network, volume.
   -e, --env stringToString         Environment variables to set in the container. (default [])
   -h, --help                       help for debug
       --image string               Container image to use for debug container.
@@ -19,13 +19,15 @@ Creating debugging sessions for pods and nodes
 ### Options inherited from parent commands
 
 ```
-      --config string   config file (default is $HOME/.sealer.json)
+      --config string   config file of sealer tool (default is $HOME/.sealer.json)
   -d, --debug           turn on debug mode
+      --hide-path       hide the log path
+      --hide-time       hide the log time
 ```
 
 ### SEE ALSO
 
-* [sealer](sealer.md)	 - 
+* [sealer](sealer.md)	 - A tool to build, share and run any distributed applications.
 * [sealer debug clean](sealer_debug_clean.md)	 - Clean the debug container od pod
 * [sealer debug node](sealer_debug_node.md)	 - Debug node
 * [sealer debug pod](sealer_debug_pod.md)	 - Debug pod or container

docs/commandline/sealer_debug_clean.md

@@ -15,10 +15,12 @@ sealer debug clean [flags]
 ### Options inherited from parent commands
 
 ```
-      --check-list strings         Check items, such as network、volume.
-      --config string              config file (default is $HOME/.sealer.json)
+      --check-list strings         Check items, such as network, volume.
+      --config string              config file of sealer tool (default is $HOME/.sealer.json)
   -d, --debug                      turn on debug mode
   -e, --env stringToString         Environment variables to set in the container. (default [])
+      --hide-path                  hide the log path
+      --hide-time                  hide the log time
       --image string               Container image to use for debug container.
       --image-pull-policy string   Container image pull policy, default policy is IfNotPresent. (default "IfNotPresent")
       --name string                Container name to use for debug container.
@@ -29,5 +31,5 @@ sealer debug clean [flags]
 
 ### SEE ALSO
 
-* [sealer debug](sealer_debug.md)	 - Creating debugging sessions for pods and nodes
+* [sealer debug](sealer_debug.md)	 - Create debugging sessions for pods and nodes
 

docs/commandline/sealer_debug_node.md

@@ -15,10 +15,12 @@ sealer debug node [flags]
 ### Options inherited from parent commands
 
 ```
-      --check-list strings         Check items, such as network、volume.
-      --config string              config file (default is $HOME/.sealer.json)
+      --check-list strings         Check items, such as network, volume.
+      --config string              config file of sealer tool (default is $HOME/.sealer.json)
   -d, --debug                      turn on debug mode
   -e, --env stringToString         Environment variables to set in the container. (default [])
+      --hide-path                  hide the log path
+      --hide-time                  hide the log time
       --image string               Container image to use for debug container.
       --image-pull-policy string   Container image pull policy, default policy is IfNotPresent. (default "IfNotPresent")
       --name string                Container name to use for debug container.
@@ -29,5 +31,5 @@ sealer debug node [flags]
 
 ### SEE ALSO
 
-* [sealer debug](sealer_debug.md)	 - Creating debugging sessions for pods and nodes
+* [sealer debug](sealer_debug.md)	 - Create debugging sessions for pods and nodes
 

docs/commandline/sealer_debug_pod.md

@@ -16,10 +16,12 @@ sealer debug pod [flags]
 ### Options inherited from parent commands
 
 ```
-      --check-list strings         Check items, such as network、volume.
-      --config string              config file (default is $HOME/.sealer.json)
+      --check-list strings         Check items, such as network, volume.
+      --config string              config file of sealer tool (default is $HOME/.sealer.json)
   -d, --debug                      turn on debug mode
   -e, --env stringToString         Environment variables to set in the container. (default [])
+      --hide-path                  hide the log path
+      --hide-time                  hide the log time
       --image string               Container image to use for debug container.
       --image-pull-policy string   Container image pull policy, default policy is IfNotPresent. (default "IfNotPresent")
       --name string                Container name to use for debug container.
@@ -30,5 +32,5 @@ sealer debug pod [flags]
 
 ### SEE ALSO
 
-* [sealer debug](sealer_debug.md)	 - Creating debugging sessions for pods and nodes
+* [sealer debug](sealer_debug.md)	 - Create debugging sessions for pods and nodes
 

docs/commandline/sealer_debug_show-images.md

@@ -15,10 +15,12 @@ sealer debug show-images [flags]
 ### Options inherited from parent commands
 
 ```
-      --check-list strings         Check items, such as network、volume.
-      --config string              config file (default is $HOME/.sealer.json)
+      --check-list strings         Check items, such as network, volume.
+      --config string              config file of sealer tool (default is $HOME/.sealer.json)
   -d, --debug                      turn on debug mode
   -e, --env stringToString         Environment variables to set in the container. (default [])
+      --hide-path                  hide the log path
+      --hide-time                  hide the log time
       --image string               Container image to use for debug container.
       --image-pull-policy string   Container image pull policy, default policy is IfNotPresent. (default "IfNotPresent")
       --name string                Container name to use for debug container.
@@ -29,5 +31,5 @@ sealer debug show-images [flags]
 
 ### SEE ALSO
 
-* [sealer debug](sealer_debug.md)	 - Creating debugging sessions for pods and nodes
+* [sealer debug](sealer_debug.md)	 - Create debugging sessions for pods and nodes