actually set canmount=noauto instead of filtering it.

README.md

@@ -20,9 +20,21 @@
 
 ## Introduction
 
-ZFS autobackup is used to periodicly backup ZFS filesystems to other locations. This is done using the very effcient zfs send and receive commands.
+This is a tool I wrote to make replicating ZFS datasets easy and reliable. You can either use it as a backup tool or as a replication tool.
 
-It has the following features:
+You can select what to backup by setting a custom `ZFS property`. This allows you to set and forget: Configure it so it backups your entire pool, and you never have to worry about backupping again. Even new datasets you create later will be backupped.
+
+Other settings are just specified on the commandline. This also makes it easier to setup and test zfs-autobackup and helps you fix all the issues you might encounter. When you're done you can just copy/paste your command to a cron or script.
+
+Since its using ZFS commands, you can see what its actually doing by specifying `--debug`. This also helps a lot if you run into some strange problem or error. You can just copy-paste the command that fails and play around with it on the commandline. (also something I missed in other tools)
+
+An imporant feature thats missing from other tools is a reliable `--test` option: This allows you to see what zfs-autobackup will do and tune your parameters. It will do everything, except make changes to your zfs datasets.
+
+Another nice thing is progress reporting with `--progress`. Its very usefull with HUGE datasets, when you want to know how many hours/days it will take.
+
+zfs-autobackup tries to be the easiest to use backup tool for zfs.
+
+## Features
 
 * Works across operating systems: Tested with Linux, FreeBSD/FreeNAS and SmartOS.
 * Works in combination with existing replication systems. (Like Proxmox HA)
@@ -49,115 +61,31 @@ It has the following features:
 
 ## Installation
 
-Use pip to install:
+### Using pip
+
+The recommended way on most servers is to use pip:
 
 ```console
 [root@server ~]# pip install zfs-autobackup
 ```
 
+### Using easy_install
+
 On older servers you might have to use easy_install
 
 ```console
 [root@server ~]# easy_install zfs-autobackup
 ```
 
-Its also possible to just download <https://raw.githubusercontent.com/psy0rz/zfs_autobackup/v3/bin/zfs_autobackup> and run it directly.
+### Direct download
 
-## Usage
+Its also possible to just download <https://raw.githubusercontent.com/psy0rz/zfs_autobackup/master/bin/zfs-autobackup> and run it directly.
 
-```console
+The only requirement that is sometimes missing is the `argparse` python module. Optionally you can install `colorma` for colors.
-[root@server ~]# zfs-autobackup --help
-usage: zfs-autobackup [-h] [--ssh-source SSH_SOURCE] [--ssh-target SSH_TARGET]
-                      [--keep-source KEEP_SOURCE] [--keep-target KEEP_TARGET]
-                      [--no-snapshot] [--allow-empty] [--ignore-replicated]
-                      [--no-holds] [--resume] [--strip-path STRIP_PATH]
-                      [--buffer BUFFER] [--clear-refreservation]
-                      [--clear-mountpoint]
-                      [--filter-properties FILTER_PROPERTIES]
-                      [--set-properties SET_PROPERTIES] [--rollback]
-                      [--ignore-transfer-errors] [--raw] [--test] [--verbose]
-                      [--debug] [--debug-output] [--progress]
-                      backup_name target_path
 
-ZFS autobackup 3.0-beta6
+It should work with python 2.7 and higher.
 
-positional arguments:
+## Example
-  backup_name           Name of the backup (you should set the zfs property
-                        "autobackup:backup-name" to true on filesystems you
-                        want to backup
-  target_path           Target ZFS filesystem
-
-optional arguments:
-  -h, --help            show this help message and exit
-  --ssh-source SSH_SOURCE
-                        Source host to get backup from. (user@hostname)
-                        Default None.
-  --ssh-target SSH_TARGET
-                        Target host to push backup to. (user@hostname) Default
-                        None.
-  --keep-source KEEP_SOURCE
-                        Thinning schedule for old source snapshots. Default:
-                        10,1d1w,1w1m,1m1y
-  --keep-target KEEP_TARGET
-                        Thinning schedule for old target snapshots. Default:
-                        10,1d1w,1w1m,1m1y
-  --no-snapshot         dont create new snapshot (usefull for finishing
-                        uncompleted backups, or cleanups)
-  --allow-empty         if nothing has changed, still create empty snapshots.
-  --ignore-replicated   Ignore datasets that seem to be replicated some other
-                        way. (No changes since lastest snapshot. Usefull for
-                        proxmox HA replication)
-  --no-holds            Dont lock snapshots on the source. (Usefull to allow
-                        proxmox HA replication to switches nodes)
-  --resume              support resuming of interrupted transfers by using the
-                        zfs extensible_dataset feature (both zpools should
-                        have it enabled) Disadvantage is that you need to use
-                        zfs recv -A if another snapshot is created on the
-                        target during a receive. Otherwise it will keep
-                        failing.
-  --strip-path STRIP_PATH
-                        number of directory to strip from path (use 1 when
-                        cloning zones between 2 SmartOS machines)
-  --buffer BUFFER       Use mbuffer with specified size to speedup zfs
-                        transfer. (e.g. --buffer 1G) Will also show nice
-                        progress output.
-  --clear-refreservation
-                        Filter "refreservation" property. (recommended, safes
-                        space. same as --filter-properties refreservation)
-  --clear-mountpoint    Filter "canmount" property. You still have to set
-                        canmount=noauto on the backup server. (recommended,
-                        prevents mount conflicts. same as --filter-properties
-                        canmount)
-  --filter-properties FILTER_PROPERTIES
-                        List of propererties to "filter" when receiving
-                        filesystems. (you can still restore them with zfs
-                        inherit -S)
-  --set-properties SET_PROPERTIES
-                        List of propererties to override when receiving
-                        filesystems. (you can still restore them with zfs
-                        inherit -S)
-  --rollback            Rollback changes on the target before starting a
-                        backup. (normally you can prevent changes by setting
-                        the readonly property on the target_path to on)
-  --ignore-transfer-errors
-                        Ignore transfer errors (still checks if received
-                        filesystem exists. usefull for acltype errors)
-  --raw                 For encrypted datasets, send data exactly as it exists
-                        on disk.
-  --test                dont change anything, just show what would be done
-                        (still does all read-only operations)
-  --verbose             verbose output
-  --debug               Show zfs commands that are executed, stops after an
-                        exception.
-  --debug-output        Show zfs commands and their output/exit codes. (noisy)
-  --progress            show zfs progress output (to stderr)
-
-When a filesystem fails, zfs_backup will continue and report the number of
-failures at that end. Also the exit code will indicate the number of failures.
-
-```
-
-## Backup example
 
 In this example we're going to backup a machine called `pve` to our backupserver.
 
@@ -197,14 +125,16 @@ rpool/swap                              autobackup:offsite1  false
 
 ### Running zfs-autobackup
 
+Before you start, make sure you can login to the server without password, by using `SSH keys`. Look at the troubleshooting section for more info.
+
 There are 2 ways to run the backup, but the endresult is always the same. Its just a matter of security (trust relations between the servers) and preference.
 
-First install the ssh-key on the server that you specify with --ssh-source or --ssh-target.
+#### Method 1: Pull backup
 
-#### Method 1: Run the script on the backup server and pull the data from the server specfied by --ssh-source. This is usually the preferred way and prevents a hacked server from accesing the backup-data
+Run the script on the backup server and pull the data from the server specfied by --ssh-source. This is usually the preferred way and prevents a hacked server from accesing the backup-data.
 
 ```console
-[root@backup ~]# zfs-autobackup --ssh-source pve.server.com offsite1 backup/pve --progress --verbose --resume
+[root@backup ~]# zfs-autobackup --ssh-source pve.server.com offsite1 backup/pve --progress --verbose
 
   #### Settings summary
   [Source] Datasets on: pve.server.com
@@ -236,7 +166,6 @@ First install the ssh-key on the server that you specify with --ssh-source or --
   [Source] Creating snapshot offsite1-20200218180123
   
   #### Transferring
-  [Target] backup/pve/rpool/ROOT/pve-1@offsite1-20200218175435: resuming
   [Target] backup/pve/rpool/ROOT/pve-1@offsite1-20200218175435: receiving full
   [Target] backup/pve/rpool/ROOT/pve-1@offsite1-20200218175547: receiving incremental
   [Target] backup/pve/rpool/ROOT/pve-1@offsite1-20200218175706: receiving incremental
@@ -247,10 +176,12 @@ First install the ssh-key on the server that you specify with --ssh-source or --
   ...
 ```
 
-#### Method 2: Run the script on the server and push the data to the backup server specified by --ssh-target
+#### Method 2: push backup
+
+Run the script on the server and push the data to the backup server specified by --ssh-target.
 
 ```console
-[root@pve ~]# zfs-autobackup --ssh-target backup.server.com offsite1 backup/pve --progress --verbose --resume
+[root@pve ~]# zfs-autobackup --ssh-target backup.server.com offsite1 backup/pve --progress --verbose
 
   #### Settings summary
   [Source] Datasets are local
@@ -270,24 +201,119 @@ First install the ssh-key on the server that you specify with --ssh-source or --
 
 ```
 
-
 ### Automatic backups
 
-Now everytime you run the command, zfs-autobackup will create a new snapshot and replicate your data. 
+Now everytime you run the command, zfs-autobackup will create a new snapshot and replicate your data.
 
-Older snapshots will evertually be deleted, depending on the --keep-source and --keep-target settings. (The defaults are shown above under the 'Settings summary')
+Older snapshots will evertually be deleted, depending on the `--keep-source` and `--keep-target` settings. (The defaults are shown above under the 'Settings summary')
 
-Once you've got the correct settings for your situation, you can just store the command in a cronjob. Or just create a script and run it manually when you need it.
+Once you've got the correct settings for your situation, you can just store the command in a cronjob. 
+
+Or just create a script and run it manually when you need it.
 
 ## Tips
 
 * Use ```--verbose``` to see details, otherwise zfs-autobackup will be quiet and only show errors, like a nice unix command.
 * Use ```--debug``` if something goes wrong and you want to see the commands that are executed. This will also stop at the first error.
 * Use ```--resume``` to be able to resume aborted backups. (not all zfs versions support this)
-* Set the ```readonly``` property of the target filesystem to ```on```. This prevents changes on the target side. If there are changes the next backup will fail and will require a zfs rollback. (by using the --rollback option for example)
+* Set the ```readonly``` property of the target filesystem to ```on```. This prevents changes on the target side. (Normally, if there are changes the next backup will fail and will require a zfs rollback.) Note that readonly means you cant change the CONTENTS of the dataset directly. Its still possible to receive new datasets and manipulate properties etc.
 * Use ```--clear-refreservation``` to save space on your backup server.
 * Use ```--clear-mountpoint``` to prevent the target server from mounting the backupped filesystem in the wrong place during a reboot.
 
+## Usage
+
+Here you find all the options:
+
+```console
+[root@server ~]# zfs-autobackup --help
+usage: zfs-autobackup [-h] [--ssh-source SSH_SOURCE] [--ssh-target SSH_TARGET]
+                      [--keep-source KEEP_SOURCE] [--keep-target KEEP_TARGET]
+                      [--no-snapshot] [--allow-empty] [--ignore-replicated]
+                      [--no-holds] [--resume] [--strip-path STRIP_PATH]
+                      [--buffer BUFFER] [--clear-refreservation]
+                      [--clear-mountpoint]
+                      [--filter-properties FILTER_PROPERTIES]
+                      [--set-properties SET_PROPERTIES] [--rollback]
+                      [--ignore-transfer-errors] [--raw] [--test] [--verbose]
+                      [--debug] [--debug-output] [--progress]
+                      backup_name target_path
+
+ZFS autobackup 3.0-rc3
+
+positional arguments:
+  backup_name           Name of the backup (you should set the zfs property
+                        "autobackup:backup-name" to true on filesystems you
+                        want to backup
+  target_path           Target ZFS filesystem
+
+optional arguments:
+  -h, --help            show this help message and exit
+  --ssh-source SSH_SOURCE
+                        Source host to get backup from. (user@hostname)
+                        Default None.
+  --ssh-target SSH_TARGET
+                        Target host to push backup to. (user@hostname) Default
+                        None.
+  --keep-source KEEP_SOURCE
+                        Thinning schedule for old source snapshots. Default:
+                        10,1d1w,1w1m,1m1y
+  --keep-target KEEP_TARGET
+                        Thinning schedule for old target snapshots. Default:
+                        10,1d1w,1w1m,1m1y
+  --no-snapshot         dont create new snapshot (usefull for finishing
+                        uncompleted backups, or cleanups)
+  --allow-empty         if nothing has changed, still create empty snapshots.
+  --ignore-replicated   Ignore datasets that seem to be replicated some other
+                        way. (No changes since lastest snapshot. Usefull for
+                        proxmox HA replication)
+  --no-holds            Dont lock snapshots on the source. (Usefull to allow
+                        proxmox HA replication to switches nodes)
+  --resume              support resuming of interrupted transfers by using the
+                        zfs extensible_dataset feature (both zpools should
+                        have it enabled) Disadvantage is that you need to use
+                        zfs recv -A if another snapshot is created on the
+                        target during a receive. Otherwise it will keep
+                        failing.
+  --strip-path STRIP_PATH
+                        number of directory to strip from path (use 1 when
+                        cloning zones between 2 SmartOS machines)
+  --clear-refreservation
+                        Filter "refreservation" property. (recommended, safes
+                        space. same as --filter-properties refreservation)
+  --clear-mountpoint    Filter "canmount" property. You still have to set
+                        canmount=noauto on the backup server. (recommended,
+                        prevents mount conflicts. same as --filter-properties
+                        canmount)
+  --filter-properties FILTER_PROPERTIES
+                        List of propererties to "filter" when receiving
+                        filesystems. (you can still restore them with zfs
+                        inherit -S)
+  --set-properties SET_PROPERTIES
+                        List of propererties to override when receiving
+                        filesystems. (you can still restore them with zfs
+                        inherit -S)
+  --rollback            Rollback changes on the target before starting a
+                        backup. (normally you can prevent changes by setting
+                        the readonly property on the target_path to on)
+  --ignore-transfer-errors
+                        Ignore transfer errors (still checks if received
+                        filesystem exists. usefull for acltype errors)
+  --raw                 For encrypted datasets, send data exactly as it exists
+                        on disk.
+  --test                dont change anything, just show what would be done
+                        (still does all read-only operations)
+  --verbose             verbose output
+  --debug               Show zfs commands that are executed, stops after an
+                        exception.
+  --debug-output        Show zfs commands and their output/exit codes. (noisy)
+  --progress            show zfs progress output (to stderr)
+
+When a filesystem fails, zfs_backup will continue and report the number of
+failures at that end. Also the exit code will indicate the number of failures.
+
+```
+
+
 ### Speeding up SSH and prevent connection flooding
 
 Add this to your ~/.ssh/config:
@@ -323,6 +349,14 @@ Look in man ssh_config for many more options.
 
 ## Troubleshooting
 
+### It keeps asking for my SSH password
+
+You forgot to setup automatic login via SSH keys:
+
+* Create a SSH key on the server that you want to run zfs-autobackup on. Use `ssh-keygen`.
+* Copy the public key to your clipboard. Get it with `cat /root/.ssh/id_rsa.pub`
+* Add the key to the server you specified with --ssh-source or --ssh-target. Create and add it to `/root/.ssh/authorized_keys`
+
 > ###  cannot receive incremental stream: invalid backup stream
 
 This usually means you've created a new snapshot on the target side during a backup:

bin/zfs-autobackup

@@ -1 +0,0 @@
-zfs_autobackup

bin/zfs_autobackup.py

@@ -1 +1 @@
-zfs_autobackup
+zfs-autobackup

setup.py

@@ -17,7 +17,7 @@ setuptools.setup(
     long_description_content_type="text/markdown",
     
     url="https://github.com/psy0rz/zfs_autobackup",
-    scripts=["bin/zfs_autobackup", "bin/zfs-autobackup"],
+    scripts=["bin/zfs-autobackup"],
     packages=setuptools.find_packages(),
     classifiers=[
         "Programming Language :: Python :: 2",