How can I make multiple replacements on the same file using one saltstack state? - replace

Question

Here's my target file:
Sonatype Nexus
# ==============
# This is the most basic configuration of Nexus.
# Jetty section
application-port=8081
application-host=0.0.0.0
nexus-webapp=${bundleBasedir}/nexus
nexus-webapp-context-path=/nexus
# Nexus section
nexus-work=/opt/nexuswork
runtime=${bundleBasedir}/nexus/WEB-INF
I know there's an easy way to do this with regex or a simple sed script:
sed -i 's/${bundleBasedir}\/..\/my\/second\/path\/002\/\/nexus/\/myfirstdir001\/g'
However, I would, ideally, prefer the saltstack way.
I would like it to look something like this:
Sonatype Nexus
# ==============
# This is the most basic configuration of Nexus.
# Jetty section
application-port=8081
application-host=0.0.0.0
nexus-webapp=/my/second/path/002/nexus # changed
nexus-webapp-context-path=/nexus
# Nexus section
nexus-work=/opt/nexuswork
runtime=/myfirstdir001/nexus/WEB-INF # changed
I haven't yet made sense of the saltstack documentation on this.
Saltstack's documentation for salt.states.file.replace seems fairly straightforward:
http://docs.saltstack.com/en/latest/ref/states/all/salt.states.file.html#salt.states.file.replace
Here's what I tried:
/opt/nexus-2.8.0/conf/nexus.properties
file: # state
- replace
- pattern: '\$\{bundleBasedir\}' # without escapes: '${bundleBasedir}/nexus'
- repl: '/my/second/path/002/nexus'
# - name: /opt/nexus-2.8.0/conf/nexus.properties
# - count=0
# - append_if_not_found=False
# - prepend_if_not_found=False
# - not_found_content=None
# - backup='.bak'
# - show_changes=True
- pattern: '\$\{bundleBasedir\}\/WEB-INF' # without escapes: ${bundleBasedir}/WEB-INF
- repl: '/myfirstdir001/'
I could maybe try multiple state IDs, but that seems inelegant.
If there's anything else I'm fuffing up, please advise!
I'd shore love to find a solution to this.
Also, if there's any demand for people improving the salt documentation, I think my team could be convinced to pitch in some.
Here's the closest thing I've found to someone else asking this question:
http://comments.gmane.org/gmane.comp.sysutils.salt.user/15138

Answer 1

For such a small file I would probably go with a template as ahus1 suggested.
If the file was bigger and/or we didn't want to control other lines just ensure that those two are correct, I think multiple state IDs (as mentioned by OP) is a good way to go. Something like:
/opt/nexus-2.8.0/conf/nexus.properties-jetty:
file:
- replace
- name: /opt/nexus-2.8.0/conf/nexus.properties
- pattern: '\$\{bundleBasedir\}' # without escapes: '${bundleBasedir}/nexus'
- repl: '/my/second/path/002/nexus'
/opt/nexus-2.8.0/conf/nexus.properties-nexus:
file:
- replace:
- name: /opt/nexus-2.8.0/conf/nexus.properties
- pattern: '\$\{bundleBasedir\}\/WEB-INF' # without escapes: ${bundleBasedir}/WEB-INF
- repl: '/myfirstdir001/'
I have a similar setup in my configuration but I use salt.states.file.line to replace some lines with my values. In addition I used salt.states.file.managed with a template and replace: False to initialize the file if it's missing but once it exists, only the line states are doing changes.

Answer 2

The salt way to do this as I understand it: Place a template file for nexus.properties inside salt and use file.managed like shown in the docs http://docs.saltstack.com/en/latest/ref/states/all/salt.states.file.html
You will end up with something like:
/opt/nexus-2.8.0/conf/nexus.properties:
file.managed:
- source: salt://nexus/nexus.properties.jinja
- template: jinja
- defaults:
bundleBasedir: "..."
You'll then use Jinja templating in your file:
# Jetty section
application-port=8081
application-host=0.0.0.0
nexus-webapp={{ bundleBasedir }}/nexus
nexus-webapp-context-path=/nexus
See here for Jinja templating: http://docs.saltstack.com/en/latest/ref/renderers/all/salt.renderers.jinja.html
I hope it helps.