mirror of https://github.com/schoebel/mars
doc: update help
This commit is contained in:
Thomas Schoebel-Theuer
parent
8c02a6cc0d
commit
6bdd19d491
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@ -44,7 +44,9 @@ Actions for inplace FS shrinking:
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Actions for inplace FS extension:
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./football.sh expand <resource> <percent>
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./football.sh extend <resource> <percent>
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Increase mounted filesystem size during operations.
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Combined actions:
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@ -168,6 +170,11 @@ General features:
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# Set this to your convenience.
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football_logdir="${football_logdir:-${logdir:-$HOME/football-logs}}"
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## football_backup_dir
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# In this directory, various backups are created.
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# Intended for manual repair.
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football_backup_dir="${football_backup_dir:-$football_logdir/backups}"
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## screener
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# When enabled, handover execution to the screener.
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# Very useful for running Football in masses.
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@ -201,6 +208,11 @@ General features:
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# of the temporary shrink mirror filesystem.
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rsync_opt_prepare="${rsync_opt_prepare:---exclude='.filemon2' --delete}"
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## rsync_opt_hot
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# This is only used at the final rsync, immediately before going
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# online again.
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rsync_opt_hot="${rsync_opt_hot:---delete}"
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## rsync_nice
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# Typically, the preparation steps are run with background priority.
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rsync_nice="${rsync_nice:-nice -19}"
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@ -215,6 +227,42 @@ General features:
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# Number of rsync lines to skip in output (avoid overflow of logfiles).
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rsync_skip_lines="${rsync_skip_lines:-1000}"
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## use_tar
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# Use incremental Gnu tar in place of rsync:
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# 0 = don't use tar
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# 1 = only use for the first (full) data transfer, then use rsync
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# 2 = always use tar
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# Experience: tar has better performance on local data than rsync, but
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# it tends to produce false-positive failure return codes on online
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# filesystems which are altered during tar.
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# The combined mode 1 tries to find a good compromise between both
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# alternatives.
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use_tar="${use_tar:-1}"
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## tar_exe
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# Use this for activation of patched tar versions, such as the
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# 1&1-internal patched spacetools-tar.
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tar_exe="${tar_exe:-/bin/tar}"
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## tar_options_src and tar_options_dst
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# Here you may give different options for both sides of tar invocations
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# (source and destination), such as verbosity options etc.
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tar_options_src="${tar_options_src:-}"
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tar_options_dst="${tar_options_dst:-}"
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## tar_is_fixed
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# Tell whether your tar version reports false-positive transfer errors,
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# or not.
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tar_is_fixed="${tar_is_fixed:-0}"
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## tar_state_dir
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# This directory is used for keeping incremental tar state information.
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tar_state_dir="${tar_state_dir:-/var/tmp}"
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## buffer_cmd
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# Speed up tar by intermediate buffering.
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buffer_cmd="${buffer_cmd:-buffer -m 16m -S 1024m || cat}"
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## wait_timeout
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# Avoid infinite loops upon waiting.
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wait_timeout="${wait_timeout:-$(( 24 * 60 ))}" # Minutes
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@ -223,6 +271,11 @@ General features:
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# Some LVM versions are requiring this for unattended batch operations.
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lvremove_opt="${lvremove_opt:--f}"
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## automatic recovery options: enable_failure_*
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enable_failure_restart_vm="${enable_failure_restart_vm:-1}"
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enable_failure_recreate_cluster="${enable_failure_recreate_cluster:-0}"
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enable_failure_rebuild_mars="${enable_failure_rebuild_mars:-1}"
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## critical_status
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# This is the "magic" exit code indicating _criticality_
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# of a failed command.
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@ -281,5 +334,394 @@ General features:
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PLUGIN football-1and1config
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1&1 specfic plugin for dealing with the cm3 clusters
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and its concrete configuration .
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and its concrete configuration.
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## enable_1and1config
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# ShaHoLin-specifc plugin for working with the infong platform
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# (istore, icpu, infong) via 1&1-specific clustermanager cm3
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# and related toolsets. Much of it is bound to a singleton database
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# instance (clustermw & siblings).
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enable_1and1config="${enable_1and1config:-$(if [[ "$0" =~ tetris ]]; then echo 1; else echo 0; fi)}"
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PLUGIN football-cm3
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1&1 specfic plugin for dealing with the cm3 cluster manager
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and its concrete operating enviroment (singleton instance).
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Current maximum cluster size limit:
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Maximum #syncs running before migration can start:
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Following marsadm --version must be installed:
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Following mars kernel modules must be loaded:
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Specific actions for plugin football-cm3:
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./football.sh clustertool {GET|PUT} <url>
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Call through to the clustertool via REST.
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Useful for manual inspection and repair.
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## enable_cm3
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# ShaHoLin-specifc plugin for working with the infong platform
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# (istore, icpu, infong) via 1&1-specific clustermanager cm3
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# and related toolsets. Much of it is bound to a singleton database
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# instance (clustermw & siblings).
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enable_cm3="${enable_cm3:-$(if [[ "$0" =~ tetris ]]; then echo 1; else echo 0; fi)}"
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## skip_resource_ping
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# Enable this only for testing. Normally, a resource name denotes a
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# container name == machine name which must be runnuing as a precondition,
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# und thus must be pingable over network.
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skip_resource_ping="${skip_resource_ping:-0}"
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## date_lock
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# Don't enter critical sections at certain days of the week,
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# and/or during certain hours.
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# This is a regex matching against "date +%u_%H"
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date_lock="${date_lock:-}"
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## check_ping_rounds
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# Number of pings to try before a container is assumed to
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# not respond.
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check_ping_rounds="${check_ping_rounds:-5}"
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## workaround_firewall
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# Documentation of technical debt for later generations:
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# This is needed since July 2017. In the many years before, no firewalling
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# was effective at the replication network, because it is a physically
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# separate network from the rest of the networking infrastructure.
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# An attacker would first need to gain root access to the _hypervisor_
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# (not only to the LXC container and/or to KVM) before gaining access to
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# those physical replication network interfaces.
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# Since about that time, which is about the same time when the requirements
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# for Container Football had been communicated, somebody introduced some
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# unnecessary firewall rules, based on "security arguments".
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# These arguments were however explicitly _not_ required by the _real_
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# security responsible person, and explicitly _not_ recommended by him.
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# Now the problem is that it is almost politically impossible to get
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# rid of suchalike "security feature".
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# Until the problem is resolved, Container Football requires
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# the _entire_ local firewall to be _temporarily_ shut down in order to
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# allow marsadm commands over ssh to work.
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# Notice: this is _not_ increasing the general security in any way.
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# LONGTERM solution / TODO: future versions of mars should no longer
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# depend on ssh.
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# Then this "feature" can be turned off.
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workaround_firewall="${workaround_firewall:-1}"
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## ip_magic
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# Similarly to workaround_firewall, this is needed since somebody
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# introduced additional firewall rules also disabling sysadmin ssh
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# connections at the _ordinary_ sysadmin network.
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ip_magic="${ip_magic:-1}"
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## do_split_cluster
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# The current MARS branch 0.1a.y is not yet constructed for forming
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# a BigCluster constisting of several thousands of machines.
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# When a future version of mars0.1b.y (or 0.2.y) will allow this,
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# this can be disabled.
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do_split_cluster="${do_split_cluster:-1}"
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## forbidden_hosts
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# Regex for excluding hostnames from any Football actions.
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# The script will fail when some of these is encountered.
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forbidden_hosts="${forbidden_hosts:-}"
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## forbidden_flavours
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# Regex for excluding flavours from any Football actions.
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# The script will fail when some of these is encountered.
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forbidden_flavours="${forbidden_flavours:-}"
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## forbidden_bz_ids
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# PROVISIONARY regex for excluding certain bz_ids from any Football actions.
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# NOTICE: bz_ids are deprecated and should not be used in future
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# (technical debts).
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# The script will fail when some of these is encountered.
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forbidden_bz_ids="${forbidden_bz_ids:-}"
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## clustertool_host
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# URL prefix of the internal configuation database REST interface.
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clustertool_host="${clustertool_host:-http://clustermw:3042}"
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## clustertool_user
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# Username for clustertool access.
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# By default, scans for a *.password file (see next option).
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clustertool_user="${clustertool_user:-$(get_cred_file "*.password" | head -1 | sed 's:.*/::g' | cut -d. -f1)}"
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## clustertool_passwd_file
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# Here you can supply the encrpted password.
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# By default, a file $clustertool_user.password is used
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# containing the encrypted password.
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clustertool_passwd_file="${clustertool_passwd_file:-$(get_cred_file "$clustertool_user.password")}"
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## clustertool_passwd
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# Here you may override the password via config file.
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# For security reasons, dont provide this at the command line.
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clustertool_passwd="${clustertool_passwd:-$(< $clustertool_passwd_file)}" || echo "cannot read a password file *.password for clustermw: you MUST supply the credentials via default curl config files (see man page)"
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## do_migrate
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# Keep this enabled. Only disable for testing.
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do_migrate="${do_migrate:-1}" # must be enabled; disable for dry-run testing
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## always_migrate
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# Only use for testing, or for special situation.
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# This skip the test whether the resource has already migration.
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always_migrate="${always_migrate:-0}" # only enable for testing
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## check_segments
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# 0 = disabled
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# 1 = only display the segment names
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# 2 = check for equality
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# WORKAROUND, potentially harmful when used inadequately.
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# The historical physical segment borders need to be removed for
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# Container Football.
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# Unfortunately, the subproject aiming to accomplish this did not
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# proceed for one year now. In the meantime, Container Football can
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# be only played within the ancient segment borders.
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# After this big impediment is eventually resolved, this option
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# should be switched off.
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check_segments="${check_segments:-1}"
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## enable_mod_deflate
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# Internal, for support.
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enable_mod_deflate="${enable_mod_deflate:-1}"
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## enable_segment_move
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# Seems to be needed by some other tooling.
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enable_segment_move="${enable_segment_move:-1}"
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## override_hwclass_id
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# When necessary, override this from $include_dir/plugins/*.conf
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override_hwclass_id="${override_hwclass_id:-}" # typically 25007
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## override_hvt_id
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# When necessary, override this from $include_dir/plugins/*.conf
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override_hvt_id="${override_hvt_id:-}" # typically 8057 or 8059
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## override_overrides
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# When this is set and other override_* variables are not set,
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# then try to _guess_ some values.
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# No guarantees for correctness either.
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override_overrides=${override_overrides:-1}
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## iqn_base and iet_type and iscsi_eth and iscsi_tid
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# Workaround: this is needed for _dynamic_ generation of iSCSI sessions
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# bypassing the ordinary ones as automatically generated by the
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# cm3 cluster manager (only at the old istore architecture).
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# Notice: not needed for regular operations, only for testing.
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# Normally, you dont want to shrink over a _shared_ 1MBit iSCSI line.
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iqn_base="${iqn_base:-iqn.2000-01.info.test:test}"
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iet_type="${iet_type:-blockio}"
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iscsi_eth="${iscsi_eth:-eth1}"
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iscsi_tid="${iscsi_tid:-4711}"
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## monitis_downtime_script
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# ShaHoLin-internal
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monitis_downtime_script="${monitis_downtime_script:-}"
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## monitis_downtime_duration
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# ShaHoLin-internal
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monitis_downtime_duration="${monitis_downtime_duration:-20}" # Minutes
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## shaholin_finished_log
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# ShaHoLin-specific logfile, reporting _only_ successful completion
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# of an action.
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shaholin_finished_log="${shaholin_finished_log:-$football_logdir/shaholin-finished.log}"
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## ticket
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# OPTIONAL: the meaning is ShaHoLin specific.
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# This can be used for updating JIRA tickets.
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# Can be set on the command line like "./tetris.sh $args --ticket=TECCM-4711
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ticket="${ticket:-}"
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## ticket_get_cmd
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# Optional: when set, this script can be used for retrieving ticket IDs
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# in place of commandline option --ticket=
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ticket_get_cmd="${ticket_get_cmd:-}"
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## ticket_update_cmd
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# This can be used for calling an external command which updates
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# the ticket(s) given by the $ticket parameter.
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ticket_update_cmd="${ticket_update_cmd:-}"
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## shaholin_action
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# OPTIONAL: specific action script with parameters.
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shaholin_action="${shaholin_action:-}"
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PLUGIN football-basic
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Generic driver for systemd-controlled MARS pools.
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The current version supports only a flat model:
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(1) There is a single "big cluster" at metadata level.
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All cluster members are joined via merge-cluster.
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All occurring names need to be globally unique.
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(2) The network uses BGP or other means, thus any hypervisor
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can (potentially) start any VM at any time.
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(3) iSCSI or remote devices are not supported for now
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(LocalSharding model). This may be extended in a future
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release.
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This plugin is exclusive-or with cm3.
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Plugin specific actions:
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./football.sh basic_add_host <hostname>
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Manually add another host to the hostname cache.
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## pool_cache_dir
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# Directory for caching the pool status.
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pool_cache_dir="${pool_cache_dir:-$script_dir/pool-cache}"
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## initial_hostname_file
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# This file must contain a list of storage and/or hypervisor hostnames
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# where a /mars directory must exist.
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# These hosts are then scanned for further cluster members,
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# and the transitive closure of all host names is computed.
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initial_hostname_file="${initial_hostname_file:-./hostnames.input}"
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## hostname_cache
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# This file contains the transitive closure of all host names.
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hostname_cache="${hostname_cache:-$pool_cache_dir/hostnames.cache}"
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## resources_cache
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# This file contains the transitive closure of all resource names.
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resources_cache="${resources_cache:-$pool_cache_dir/resources.cache}"
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## res2hyper_cache
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# This file contains the association between resources and hypervisors.
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res2hyper_cache="${res2hyper_cache:-$pool_cache_dir/res2hyper.assoc}"
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## enable_basic
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# This plugin is exclusive-or with cm3.
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enable_basic="${enable_basic:-$(if [[ "$0" =~ football ]]; then echo 1; else echo 0; fi)}"
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## ssh_port
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# Set this for separating sysadmin access from customer access
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ssh_port="${ssh_port:-}"
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## basic_mnt_dir
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# Names the mountpoint directory at hypervisors.
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# This must co-incide with the systemd mountpoints.
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basic_mnt_dir="${basic_mnt_dir:-/mnt}"
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PLUGIN football-downtime
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Generic plugin for communication of customer downtime.
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## downtime_cmd_{set,unset}
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# External command for setting / unsetting (or communicating) a downtime
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# Empty = don't do anything
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downtime_cmd_set="${downtime_cmd_set:-}"
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downtime_cmd_unset="${downtime_cmd_unset:-}"
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PLUGIN football-motd
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Generic plugin for motd. Communicate that Football is running
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at login via motd.
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## enable_motd
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# whether to use the motd plugin.
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enable_motd="${enable_motd:-0}"
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## update_motd_cmd
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# Distro-specific command for generating motd from several sources.
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# Only tested for Debian Jessie at the moment.
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update_motd_cmd="${update_motd_cmd:-update-motd}"
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## download_motd_script and motd_script_dir
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# When no script has been installed into /etc/update-motd.d/
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# you can do it dynamically here, bypassing any "official" deployment
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# methods. Use this only for testing!
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# An example script (which should be deployed via your ordinary methods)
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# can be found under $script_dir/update-motd.d/67-football-running
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download_motd_script="${download_motd_script:-}"
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motd_script_dir="${motd_script_dir:-/etc/update-motd.d}"
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## motd_file
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# This will contain the reported motd message.
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# It is created by this plugin.
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motd_file="${motd_file:-/var/motd/football.txt}"
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## motd_color_on and motd_color_off
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# ANSI escape sequences for coloring the generated motd message.
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motd_color_on="${motd_color_on:-\\033[31m}"
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motd_color_off="${motd_color_off:-\\033[0m}"
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PLUGIN football-report
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Generic plugin for communication of reports.
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## report_cmd_{start,warning,failed,finished}
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# External command which is called at start / failure / finish
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# of Football.
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# The following variables can be used (e.g. as parameters) when
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# escaped with a backslash:
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# $res = name of the resource (LV, container, etc)
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# $primary = the current (old)
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# $secondary_list = list of current (old) secondaries
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# $target_primary = the target primary name
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# $target_secondary = list of target secondaries
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# $operation = the operation name
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# $target_percent = the value used for shrinking
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# $txt = some informative text from Football
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# Further variables are possible by looking at the sourcecode, or by
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# defining your own variables or functions externally or via plugins.
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# Empty = don't do anything
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report_cmd_start="${report_cmd_start:-}"
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report_cmd_warning="${report_cmd_warning:-$script_dir/screener.sh notify "$res" warning "$txt"}"
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report_cmd_failed="${report_cmd_failed:-}"
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report_cmd_finished="${report_cmd_finished:-}"
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PLUGIN football-waiting
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Generic plugig, interfacing with screener: when this is used
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by your script and enabled, then you will be able to wait for
|
||||
"screener.sh continue" operations at certain points in your
|
||||
script.
|
||||
|
||||
## enable_*_waiting
|
||||
#
|
||||
# When this is enabled, and when Football had been started by screener,
|
||||
# then football will delay the start of several operations until a sysadmin
|
||||
# does one of the following manually:
|
||||
#
|
||||
# a) ./screener.sh continue $session
|
||||
# b) ./screener.sh resume $session
|
||||
# c) ./screener.sh attach $session and press the RETURN key
|
||||
# d) doing nothing, and $wait_timeout has exceeded
|
||||
#
|
||||
# CONVENTION: football resource names are used as screener session ids.
|
||||
# This ensures that only 1 operation can be started for the same resource,
|
||||
# and it simplifies the handling for junior sysadmins.
|
||||
#
|
||||
enable_startup_waiting="${enable_startup_waiting:-0}"
|
||||
enable_handover_waiting="${enable_handover_waiting:-0}"
|
||||
enable_migrate_waiting="${enable_migrate_waiting:-0}"
|
||||
enable_shrink_waiting="${enable_shrink_waiting:-0}"
|
||||
|
||||
## enable_cleanup_delayed and wait_before_cleanup
|
||||
# By setting this, you can delay the cleanup operations for some time.
|
||||
# This way, you are keeping the old LV contents as a kind of "backup"
|
||||
# for some limited time.
|
||||
# HINT: dont set to wait_before_cleanuplarge values, because it can
|
||||
# seriously slow down Football.
|
||||
enable_cleanup_delayed="${enable_cleanup_delayed:-0}"
|
||||
wait_before_cleanup="${wait_before_cleanup:-180}" # Minutes
|
||||
|
||||
## reduce_wait_msg
|
||||
# Instead of reporting the waiting status once per minute,
|
||||
# decrease the frequency of resporting.
|
||||
# Warning: dont increase this too much. Do not exceed
|
||||
# session_timeout/2 from screener. Because of the Nyquist criterion,
|
||||
# stay on the safe side by setting session_timeout at least to _twice_
|
||||
# the time than here.
|
||||
reduce_wait_msg="${reduce_wait_msg:-60}" # Minutes
|
||||
|
||||
|
||||
\end{verbatim}
|
||||
|
|
|
|||
|
|
@ -43,7 +43,9 @@ Actions for inplace FS shrinking:
|
|||
|
||||
Actions for inplace FS extension:
|
||||
|
||||
./football.sh expand <resource> <percent>
|
||||
./football.sh extend <resource> <percent>
|
||||
Increase mounted filesystem size during operations.
|
||||
|
||||
Combined actions:
|
||||
|
||||
|
|
@ -126,7 +128,8 @@ General features:
|
|||
PLUGIN football-1and1config
|
||||
|
||||
1&1 specfic plugin for dealing with the cm3 clusters
|
||||
and its concrete configuration .
|
||||
and its concrete configuration.
|
||||
|
||||
|
||||
PLUGIN football-cm3
|
||||
|
||||
|
|
@ -141,6 +144,12 @@ PLUGIN football-cm3
|
|||
|
||||
Following mars kernel modules must be loaded:
|
||||
|
||||
Specific actions for plugin football-cm3:
|
||||
|
||||
./football.sh clustertool {GET|PUT} <url>
|
||||
Call through to the clustertool via REST.
|
||||
Useful for manual inspection and repair.
|
||||
|
||||
|
||||
PLUGIN football-basic
|
||||
|
||||
|
|
@ -162,6 +171,11 @@ Plugin specific actions:
|
|||
Manually add another host to the hostname cache.
|
||||
|
||||
|
||||
PLUGIN football-downtime
|
||||
|
||||
Generic plugin for communication of customer downtime.
|
||||
|
||||
|
||||
PLUGIN football-motd
|
||||
|
||||
Generic plugin for motd. Communicate that Football is running
|
||||
|
|
@ -180,4 +194,5 @@ PLUGIN football-waiting
|
|||
"screener.sh continue" operations at certain points in your
|
||||
script.
|
||||
|
||||
|
||||
\end{verbatim}
|
||||
|
|
|
|||
|
|
@ -13,6 +13,10 @@ marsadm [<global_options>] view[-<macroname>] [<resource_name> | all ]
|
|||
Use this only when you really know what you are doing!
|
||||
Warning! This is dangerous! First try --dry-run.
|
||||
Not combinable with 'all'.
|
||||
--ignore-sync
|
||||
Allow primary handover even when some sync is running somewhere.
|
||||
This is less rude than --force because it checks for all else
|
||||
preconditions.
|
||||
--dry-run
|
||||
Don't modify the symlink tree, but tell what would be done.
|
||||
Use this before starting potentially harmful actions such as
|
||||
|
|
@ -567,5 +571,4 @@ marsadm [<global_options>] view[-<macroname>] [<resource_name> | all ]
|
|||
{sync,fetch,replay,work}-{rest,{almost-,threshold-,}reached,percent,permille,vector}
|
||||
{sync,fetch,replay}-{rate,remain}
|
||||
{time,real-time}
|
||||
{tree,features}-version
|
||||
\end{verbatim}
|
||||
|
|
|
|||
Loading…
Reference in New Issue