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< li class = "toctree-l1" > < a class = "reference internal" href = "cdist-intro.html" > 1. cdist - usable configuration management< / a > < / li >
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< li class = "toctree-l1 current" > < a class = "current reference internal" href = "#" > 17. Inventory< / a > < ul >
< li class = "toctree-l2" > < a class = "reference internal" href = "#introduction" > 17.1. Introduction< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "#description" > 17.2. Description< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "#cdist-inventory-interface" > 17.3. cdist inventory interface< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "#configuring-hosts-using-inventory" > 17.4. Configuring hosts using inventory< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "#examples" > 17.5. Examples< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "#example-of-manipulating-database" > 17.6. Example of manipulating database< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "#using-external-inventory" > 17.7. Using external inventory< / a > < / li >
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< h1 > 17. Inventory< a class = "headerlink" href = "#inventory" title = "Permalink to this headline" > ¶< / a > < / h1 >
< div class = "section" id = "introduction" >
< h2 > 17.1. Introduction< a class = "headerlink" href = "#introduction" title = "Permalink to this headline" > ¶< / a > < / h2 >
< p > cdist comes with simple built-in tag based inventory. It is a simple inventory
with list of hosts and a host has a list of tags.
Inventory functionality is still in < strong > beta< / strong > so it can be used only if beta
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command line flag is specified (-b, --beta) or setting CDIST_BETA env var.< / p >
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< / div >
< div class = "section" id = "description" >
< h2 > 17.2. Description< a class = "headerlink" href = "#description" title = "Permalink to this headline" > ¶< / a > < / h2 >
< p > The idea is to have simple tagging inventory. There is a list of hosts and for
each host there are tags. Inventory database is a set of files under inventory
database base directory. Filename equals hostname. Each file contains tags for
hostname with each tag on its own line.< / p >
< p > Using inventory you can now configure hosts by selecting them by tags.< / p >
< p > Tags have no values, as tags are just tags. Tag name-value would in this
context mean that host has two tags and it is selected by specifying that both
tags are present.< / p >
< p > This inventory is < strong > KISS< / strong > cdist built-in inventory database. You can maintain it
using cdist inventory interface or using standard UNIX tools.< / p >
< / div >
< div class = "section" id = "cdist-inventory-interface" >
< h2 > 17.3. cdist inventory interface< a class = "headerlink" href = "#cdist-inventory-interface" title = "Permalink to this headline" > ¶< / a > < / h2 >
< p > With cdist inventory interface you can list host(s) and tag(s), add host(s),
add tag(s), delete host(s) and delete tag(s).< / p >
< / div >
< div class = "section" id = "configuring-hosts-using-inventory" >
< h2 > 17.4. Configuring hosts using inventory< a class = "headerlink" href = "#configuring-hosts-using-inventory" title = "Permalink to this headline" > ¶< / a > < / h2 >
< p > config command now has new options, < strong > -t< / strong > , < strong > -a< / strong > and < strong > -A< / strong > .< / p >
< p > < strong > -A< / strong > means that all hosts in tag db is selected.< / p >
< p > < strong > -a< / strong > means that selected hosts must contain ALL specified tags.< / p >
< p > < strong > -t< / strong > means that host specifies tag - all hosts that have specified tags are
selected.< / p >
< / div >
< div class = "section" id = "examples" >
< h2 > 17.5. Examples< a class = "headerlink" href = "#examples" title = "Permalink to this headline" > ¶< / a > < / h2 >
< div class = "highlight-sh" > < div class = "highlight" > < pre > < span > < / span > < span class = "c1" > # List inventory content< / span >
$ cdist inventory list -b
< span class = "c1" > # List inventory for specified host localhost< / span >
$ cdist inventory list -b localhost
< span class = "c1" > # List inventory for specified tag loadbalancer< / span >
$ cdist inventory list -b -t loadbalancer
< span class = "c1" > # Add hosts to inventory< / span >
$ cdist inventory add-host -b web1 web2 web3
< span class = "c1" > # Delete hosts from file old-hosts from inventory< / span >
$ cdist inventory del-host -b -f old-hosts
< span class = "c1" > # Add tags to specifed hosts< / span >
$ cdist inventory add-tag -b -t europe,croatia,web,static web1 web2
< span class = "c1" > # Add tag to all hosts in inventory< / span >
$ cdist inventory add-tag -b -t vm
< span class = "c1" > # Delete all tags from specified host< / span >
$ cdist inventory del-tag -b -a localhost
< span class = "c1" > # Delete tags read from stdin from hosts specified by file hosts< / span >
$ cdist inventory del-tag -b -T - -f hosts
< span class = "c1" > # Configure hosts from inventory with any of specified tags< / span >
$ cdist config -b -t web dynamic
< span class = "c1" > # Configure hosts from inventory with all specified tags< / span >
$ cdist config -b -t -a web dynamic
< span class = "c1" > # Configure all hosts from inventory db< / span >
$ cdist config -b -A
< / pre > < / div >
< / div >
< / div >
< div class = "section" id = "example-of-manipulating-database" >
< h2 > 17.6. Example of manipulating database< a class = "headerlink" href = "#example-of-manipulating-database" title = "Permalink to this headline" > ¶< / a > < / h2 >
< div class = "highlight-sh" > < div class = "highlight" > < pre > < span > < / span > $ python3 scripts/cdist inventory list -b
$ python3 scripts/cdist inventory add-host -b localhost
$ python3 scripts/cdist inventory add-host -b test.mycloud.net
$ python3 scripts/cdist inventory list -b
localhost
test.mycloud.net
$ python3 scripts/cdist inventory add-host -b web1.mycloud.net web2.mycloud.net shell1.mycloud.net shell2.mycloud.net
$ python3 scripts/cdist inventory list -b
localhost
test.mycloud.net
web1.mycloud.net
web2.mycloud.net
shell1.mycloud.net
shell2.mycloud.net
$ python3 scripts/cdist inventory add-tag -b -t web web1.mycloud.net web2.mycloud.net
$ python3 scripts/cdist inventory add-tag -b -t shell shell1.mycloud.net shell2.mycloud.net
$ python3 scripts/cdist inventory add-tag -b -t cloud
$ python3 scripts/cdist inventory list -b
localhost cloud
test.mycloud.net cloud
web1.mycloud.net cloud,web
web2.mycloud.net cloud,web
shell1.mycloud.net cloud,shell
shell2.mycloud.net cloud,shell
$ python3 scripts/cdist inventory add-tag -b -t test,web,shell test.mycloud.net
$ python3 scripts/cdist inventory list -b
localhost cloud
test.mycloud.net cloud,shell,test,web
web1.mycloud.net cloud,web
web2.mycloud.net cloud,web
shell1.mycloud.net cloud,shell
shell2.mycloud.net cloud,shell
$ python3 scripts/cdist inventory del-tag -b -t shell test.mycloud.net
$ python3 scripts/cdist inventory list -b
localhost cloud
test.mycloud.net cloud,test,web
web1.mycloud.net cloud,web
web2.mycloud.net cloud,web
shell1.mycloud.net cloud,shell
shell2.mycloud.net cloud,shell
$ python3 scripts/cdist inventory add-tag -b -t all
$ python3 scripts/cdist inventory add-tag -b -t mistake
$ python3 scripts/cdist inventory list -b
localhost all,cloud,mistake
test.mycloud.net all,cloud,mistake,test,web
web1.mycloud.net all,cloud,mistake,web
web2.mycloud.net all,cloud,mistake,web
shell1.mycloud.net all,cloud,mistake,shell
shell2.mycloud.net all,cloud,mistake,shell
$ python3 scripts/cdist inventory del-tag -b -t mistake
$ python3 scripts/cdist inventory list -b
localhost all,cloud
test.mycloud.net all,cloud,test,web
web1.mycloud.net all,cloud,web
web2.mycloud.net all,cloud,web
shell1.mycloud.net all,cloud,shell
shell2.mycloud.net all,cloud,shell
$ python3 scripts/cdist inventory del-host -b localhost
$ python3 scripts/cdist inventory list -b
test.mycloud.net all,cloud,test,web
web1.mycloud.net all,cloud,web
web2.mycloud.net all,cloud,web
shell1.mycloud.net all,cloud,shell
shell2.mycloud.net all,cloud,shell
$ python3 scripts/cdist inventory list -b -t web
test.mycloud.net all,cloud,test,web
web1.mycloud.net all,cloud,web
web2.mycloud.net all,cloud,web
$ python3 scripts/cdist inventory list -b -t -a web < span class = "nb" > test< / span >
test.mycloud.net all,cloud,test,web
$ python3 scripts/cdist inventory list -b -t -a web all
test.mycloud.net all,cloud,test,web
web1.mycloud.net all,cloud,web
web2.mycloud.net all,cloud,web
$ python3 scripts/cdist inventory list -b -t web all
test.mycloud.net all,cloud,test,web
web1.mycloud.net all,cloud,web
web2.mycloud.net all,cloud,web
shell1.mycloud.net all,cloud,shell
shell2.mycloud.net all,cloud,shell
$ < span class = "nb" > cd< / span > cdist/inventory
$ ls -1
shell1.mycloud.net
shell2.mycloud.net
test.mycloud.net
web1.mycloud.net
web2.mycloud.net
$ ls -l
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total < span class = "m" > 20< / span >
-rw-r--r-- < span class = "m" > 1< / span > darko darko < span class = "m" > 16< / span > Jun < span class = "m" > 24< / span > < span class = "m" > 12< / span > :43 shell1.mycloud.net
-rw-r--r-- < span class = "m" > 1< / span > darko darko < span class = "m" > 16< / span > Jun < span class = "m" > 24< / span > < span class = "m" > 12< / span > :43 shell2.mycloud.net
-rw-r--r-- < span class = "m" > 1< / span > darko darko < span class = "m" > 19< / span > Jun < span class = "m" > 24< / span > < span class = "m" > 12< / span > :43 test.mycloud.net
-rw-r--r-- < span class = "m" > 1< / span > darko darko < span class = "m" > 14< / span > Jun < span class = "m" > 24< / span > < span class = "m" > 12< / span > :43 web1.mycloud.net
-rw-r--r-- < span class = "m" > 1< / span > darko darko < span class = "m" > 14< / span > Jun < span class = "m" > 24< / span > < span class = "m" > 12< / span > :43 web2.mycloud.net
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$ cat test.mycloud.net
< span class = "nb" > test< / span >
all
web
cloud
$ cat web2.mycloud.net
all
web
cloud
< / pre > < / div >
< / div >
< p > For more info about inventory commands and options see < a class = "reference external" href = "man1/cdist.html" > cdist< / a > (1).< / p >
< / div >
< div class = "section" id = "using-external-inventory" >
< h2 > 17.7. Using external inventory< a class = "headerlink" href = "#using-external-inventory" title = "Permalink to this headline" > ¶< / a > < / h2 >
< p > cdist can be used with any external inventory where external inventory is
some storage or database from which you can get a list of hosts to configure.
cdist can then be fed with this list of hosts through stdin or file using
< strong > -f< / strong > option. For example, if your host list is stored in sqlite3 database
hosts.db and you want to select hosts which purpose is < strong > django< / strong > then you
can use it with cdist like:< / p >
< div class = "highlight-sh" > < div class = "highlight" > < pre > < span > < / span > $ sqlite3 hosts.db < span class = "s2" > " select hostname from hosts where purpose = ' django' ;" < / span > < span class = "p" > |< / span > cdist config
< / pre > < / div >
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