Mercurial > hgrepos > FreeBSD > ports > sysutils > local-bsdtools

annotate docs/man/man8/ftjail.rst @ 770:56ab5c012d5f

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fports: Begin a new command "fports" and fully implemented its subcommand "fports deptree". fports is supposed to be the successor to check-ports.
author Franz Glasner <fzglas.hg@dom66.de>
date Wed, 23 Oct 2024 13:56:52 +0200
parents bc418b122fc9
children
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1 .. -*- coding: utf-8; indent-tabs-mode: nil; -*-
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2
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3 ftjail
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4 ======
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5
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6 Synopsis
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7 --------
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8
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9 **ftjail -hV**
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10
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11 **ftjail subcommand**
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13
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14 Description
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15 -----------
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16
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17 Management tool for Thin Jails: creation of base and skeleton ZFS datasets,
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18 mount and population helpers.
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20 The following global options are implemented:
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21
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22 .. program:: ftjail
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24 .. option:: -h
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26 Print a short usage message to stdout and exit.
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28 .. option:: -V
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30 Print the program name and version number to stdout and exit.
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33 Subcommands
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34 -----------
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36 :manpage:`ftjail-build-etcupdate-current-tmpl(8)`
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37
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38 Build a "current" tree suitable for the default and extract mode
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39 of \"etcupdate\"
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41 :manpage:`ftjail-check-freebsd-update(8)`
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43 Check for preconditions to run :manpage:`ftjail-freebsd-update(8)`
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44 for a Thin Jail successfully
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46 :manpage:`ftjail-copy-skel(8)`
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48 Recursively copy template skeleton contents into jail-specific datasets
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50 :manpage:`ftjail-datasets-tmpl(8)`
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52 Create ZFS template datasets for new Thin Jails using base and skeleton
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54 :manpage:`ftjail-freebsd-update(8)`
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55
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56 A :manpage:`freebsd-update(8)` implementation for Thin Jails
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58 :manpage:`ftjail-mount-tmpl(8)`
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60 Canonically mount the RO base and the RW skeleton of a Thin Jail
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62 :manpage:`ftjail-umount-tmpl(8)`
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64 Unmount mounted Thin Jail template datasets
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66 :manpage:`ftjail-interlink-tmpl(8)`
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68 Create proper symlinks for "skeleton" style Thin Jails
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70 :manpage:`ftjail-populate-tmpl(8)`
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72 Populate a prepared directory structure with the contents of a
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73 FreeBSD base system
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74
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75 :manpage:`ftjail-snapshot-tmpl(8)`
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77 Recursively create ZFS snapshots of the RO base datasets and the RW
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78 skeleton datasets
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81 Implementation Notes
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82 --------------------
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83
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84 All commands with the exception of :command:`ftjail populate-tmpl` and
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85 :command:`ftjail interlink-tmpl` require ZFS as filesystem.
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88 Environment
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89 -----------
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90
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91 All environment variables that affect :command:`zfs` are effective also.
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94 Examples
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95 --------
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97 Prepare the containers for the template datasets
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98 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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100 Container for templates::
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101
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102 zfs create -o canmount=off -o mountpoint=/jail/ttmpl zpool/jail/ttmpl
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104 Sub-container for all read-only bases::
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106 zfs create -o canmount=off zpool/jail/ttmpl/base-ro
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108 Sub-container for all read-write volumes::
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110 zfs create -o canmount=off zpool/jail/ttmpl/skel-rw
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113 Create a new complete template for a FreeBSD distribution
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114 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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115
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116 Create new template datasets and populate them from a distribution archive.
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117 The example is for FreeBSD 13.3-RELEASE::
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119 # prepare empty datasets
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120 ftjail datasets-tmpl -P zpool/jail/ttmpl/base-ro zpool/jail/ttmpl/skel-rw 13.3-RELEASE
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122 #
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123 # Here you can adjust some properties (``canmount``) or create some additional
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124 # datasets manually.
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125 #
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126
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127 # mount at a temporary mountpoint
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128 mkdir /var/tmp/13.3
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129 ftjail mount-tmpl -P zpool/jail/ttmpl/base-ro/13.3-RELEASE zpool/jail/ttmpl/skel-rw/13.3-RELEASE /var/tmp/13.3
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130
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131 # populate the contents from the distribution archive
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132 ftjail populate-tmpl -P /var/tmp/13.3 base-13.3-RELEASE.txz
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133
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134 # If the kernel is wanted also then extract it like this
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135 ftjail populate-tmpl -P -b /var/tmp/13.3 base-13.3-RELEASE.txt kernel-13.3-RELEASE.txz
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136
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137 Make a named snapshot named "base" for the original::
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138
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139 ftjail snapshot-tmpl zpool/jail/ttmpl/base-ro/13.3-RELEASE zpool/jail/ttmpl/skel-rw/13.3-RELEASE base
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140
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141 Also prepare the :command:`etcupdate`::
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142
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143 ftjail build-etcupdate-current-tmpl /var/tmp/13.3 etcupdate-current-13.3@base.tbz
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144
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145 Update to the current patch level and tag accordingly (e.g. "p5")::
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146
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147 # Update
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148 freebsd-update -b /var/tmp/13.3 -d /var/tmp/13.3/var/db/freebsd-update/ --currently-running 13.3-RELEASE fetch
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149 freebsd-update -b /var/tmp/13.3 -d /var/tmp/13.3/var/db/freebsd-update/ --currently-running 13.3-RELEASE install
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150
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151 # Snapshot
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152 ftjail snapshot-tmpl zpool/jail/ttmpl/base-ro/13.3-RELEASE zpool/jail/ttmpl/skel-rw/13.3-RELEASE p5
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153
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154 # Do not forget to prepare for etcupdate
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155 ftjail build-etcupdate-current-tmpl /var/tmp/13.3 etcupdate-current-13.3@p5.tbz
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156
470
c65a79d84e9e FIX: German -> englich in man
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157 Unmount::
468
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158
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159 ftjail umount-tmpl zpool/jail/ttmpl/base-ro/13.3-RELEASE zpool/jail/ttmpl/skel-rw/13.3-RELEASE
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160
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161
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162 Container and Common Location for instantiated Thin Jails
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163 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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164
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165 All thin jails are located at :file:`/jail/TROOT`::
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166
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167 zfs create -o mountpoint=/jail/TROOT zpool/jail/TROOT
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168
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169 Create the variable datasets (read-write) with the same mountpoint as above::
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170
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171 zfs create -o canmount=off -o mountpoint=/jail/TROOT zpool/jail/TVAR
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172
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173
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174 Creation of a real Thin Jail
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175 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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176
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177 Clone the read-only root filesystem base::
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178
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179 zfs clone -o readonly=on zpool/jail/ttmpl/base-ro/13.3-RELEASE@p5 zpool/jail/TROOT/build13
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180
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181 If you want some additional directory (e.g. for :file:`/srv` et al.) do this
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182 instead::
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183
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184 zfs clone -o readonly=off zpool/jail/ttmpl/base-ro/13.3-RELEASE@p5 zpool/jail/TROOT/build13
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185 # change before making it read-only
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186 mkdir /jail/TROOT/build13/srv
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187 zfs set readonly=on zpool/jail/TROOT/build13
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188
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189 Copy -- not clone -- the variable parts::
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190
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191 ftjail copy-skel -P zpool/jail/ttmpl/skel-rw/13.3-RELEASE p5 zpool/jail/TVAR/build13
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192
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193 Configure some important parts (as in "normal" jails)::
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194
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195 mount -t devfs devfs /jail/TROOT/build13/dev
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196 fjail configure /jail/TROOT/build13
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197 umount /jail/TROOT/build13/dev