Update opts.MemBytes to disable default, and move `docker run/create/build` to use opts.MemBytes

This fix made several updates:
1. Update opts.MemBytes so that default value will not show up.
   The reason is that in case a default value is decided by daemon,
   instead of client, we actually want to not show default value.
2. Move `docker run/create/build` to use opts.MemBytes for `--shm-size`
   This is to bring consistency between daemon and docker run
3. docs updates.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

docs/reference/commandline/build.md

@@ -49,7 +49,7 @@ Options:
   -q, --quiet                   Suppress the build output and print image ID on success
       --rm                      Remove intermediate containers after a successful build (default true)
       --security-opt value      Security Options (default [])
-      --shm-size string         Size of /dev/shm, default value is 64MB.
+      --shm-size bytes          Size of /dev/shm
                                 The format is `<number><unit>`. `number` must be greater than `0`.
                                 Unit is optional and can be `b` (bytes), `k` (kilobytes), `m` (megabytes),
                                 or `g` (gigabytes). If you omit the unit, the system uses bytes.

docs/reference/commandline/create.md

@@ -107,7 +107,7 @@ Options:
       --rm                          Automatically remove the container when it exits
       --runtime string              Runtime to use for this container
       --security-opt value          Security Options (default [])
-      --shm-size string             Size of /dev/shm, default value is 64MB.
+      --shm-size bytes              Size of /dev/shm
                                     The format is `<number><unit>`. `number` must be greater than `0`.
                                     Unit is optional and can be `b` (bytes), `k` (kilobytes), `m` (megabytes),
                                     or `g` (gigabytes). If you omit the unit, the system uses bytes.

docs/reference/commandline/run.md

@@ -117,7 +117,7 @@ Options:
       --rm                          Automatically remove the container when it exits
       --runtime string              Runtime to use for this container
       --security-opt value          Security Options (default [])
-      --shm-size string             Size of /dev/shm, default value is 64MB.
+      --shm-size bytes              Size of /dev/shm
                                     The format is `<number><unit>`. `number` must be greater than `0`.
                                     Unit is optional and can be `b` (bytes), `k` (kilobytes), `m` (megabytes),
                                     or `g` (gigabytes). If you omit the unit, the system uses bytes.

docs/reference/commandline/service_create.md

@@ -39,7 +39,7 @@ Options:
       --hostname string                  Container hostname
   -l, --label list                       Service labels (default [])
       --limit-cpu decimal                Limit CPUs (default 0.000)
-      --limit-memory bytes               Limit Memory (default 0 B)
+      --limit-memory bytes               Limit Memory
       --log-driver string                Logging driver for service
       --log-opt list                     Logging driver options (default [])
       --mode string                      Service mode (replicated or global) (default "replicated")
@@ -51,7 +51,7 @@ Options:
       --read-only                        Mount the container's root filesystem as read only
       --replicas uint                    Number of tasks
       --reserve-cpu decimal              Reserve CPUs (default 0.000)
-      --reserve-memory bytes             Reserve Memory (default 0 B)
+      --reserve-memory bytes             Reserve Memory
       --restart-condition string         Restart when condition is met (none, on-failure, or any)
       --restart-delay duration           Delay between restart attempts (ns|us|ms|s|m|h)
       --restart-max-attempts uint        Maximum number of restarts before giving up

docs/reference/commandline/service_update.md

@@ -50,7 +50,7 @@ Options:
       --label-add list                   Add or update a service label (default [])
       --label-rm list                    Remove a label by its key (default [])
       --limit-cpu decimal                Limit CPUs (default 0.000)
-      --limit-memory bytes               Limit Memory (default 0 B)
+      --limit-memory bytes               Limit Memory
       --log-driver string                Logging driver for service
       --log-opt list                     Logging driver options (default [])
       --mount-add mount                  Add or update a mount on a service
@@ -61,7 +61,7 @@ Options:
       --read-only                        Mount the container's root filesystem as read only
       --replicas uint                    Number of tasks
       --reserve-cpu decimal              Reserve CPUs (default 0.000)
-      --reserve-memory bytes             Reserve Memory (default 0 B)
+      --reserve-memory bytes             Reserve Memory
       --restart-condition string         Restart when condition is met (none, on-failure, or any)
       --restart-delay duration           Delay between restart attempts (ns|us|ms|s|m|h)
       --restart-max-attempts uint        Maximum number of restarts before giving up