I have to change
`<!--<parameter name=\"HostnameVerifier\">DefaultAndLocalhost</parameter>-->`
to
<!--<parameter name=\"HostnameVerifier\">AllowAll</parameter>--> in APIM_HOME/repository/conf/axis2/axis2.xml.
I am using
- name: "Modify HostnameVerifier"
lineinfile:
dest: "/home/ec2-user/ansible-test/wso2am-2.0.0/repository/conf/axis2/axis2.xml"
state: "present"
line: "\t\t<parameter name=\"HostnameVerifier\">AllowAll</parameter>"
regexp: "<!--<parameter name=\"HostnameVerifier\">DefaultAndLocalhost</parameter>-->"
This is only replacing the 3rd occurrence of the regexp. I want it to replace only 2nd occurrence. How do I do that?
You can't do this with lineinfile. From the docs:
...only the last line found will be replaced...
And lineinfile iterates line-by-line – you can't add more context to it.
You should use replace module and add more context to the regexp to match exatly that part of file you want to modify. You can use multiline patterns here.
Related
Very difficult to understand ansible behavior. I'm trying to edit my /etc/postfix/master.cf file to turn on the submission block.
I copied the file to /tmp as I'm working on it, so my simple Ansible playbook should be:
- name: Edit the master.cf file
replace:
path: /tmp/master.cf
after: '^#tlsproxy'
before: '^#smtps'
regexp: '^#(.*)$'
replace: '\1'
But this doesn't work. It does work if I make one change, which is taking out the caret ^ in the before and after fields. This makes ... no sense to me at all. What makes even less sense, if I use:
after: '^#'
amazingly, it will do what I expect and uncomment all the lines after the first commented line.
But:
after: '^#t'
suddenly stops matching anything. I've read the Python page on regex and yet I'm baffled by this.
Any ideas? The playbook will work fine without the carets but I want to do this really correctly and match exactly what I want to match.
Thanks!
Ansible's replace module: uses DOTALL, which means the . special character can match newlines.
When you specify after: '^#tlsproxy', that caret is really saying: 'from the beginning of the search string, immediately followed by #tlsproxy', where the caret effectively means from the beginning of the file.
Ansible tries to match this:
"Pattern for before/after params did not match the given file: ^#tlsproxy(?P<subsection>.*?)^#smtps"
With re.DOTALL, if you want to match the patterns from the beginning of a line, use a newline character instead:
- name: Edit the master.cf file
replace:
path: master.cf
after: '\n#tlsproxy'
before: '\n#smtps'
regexp: '^#(.*)$'
replace: '\1'
Say a file (socket.cfg) has the following
socket1:a:1.2.3.4:wso,ws1,ws2
socket2:b:2.5.6.7:ws3,ws5,ws7
Now I want to change only the IP where "socket1" contains in the line and the rest should remain the same. The data given to me would be only socket1 and IP to be changed.
I did try lineinfile and replace module but the whole pattern changes. Kindly help me out.
It is similar to the sed command like this sed /socket1/<Ip_pattern>/<replacing_IP> So this goes to socket1 line picks the IP and replaces only that. I want something like this.
Here is what you need,
- name: replace the ip address
lineinfile:
path: /path/to/socket.cfg
regexp: ^(socket1)(.*)(\d+.\d+.\d+.\d+)(.*)
line: \g<1>\g<2>{{ inventory_hostname }}\g<4>
backrefs: yes
Note: I have used regex groups while replacing the contents.
I have replaced the IP with the inventory_hostname which is localhost in my case, you can update it to whatever you want.
Input:
socket1:b:1.2.3.4:ws3,ws5,ws7
socket2:b:2.5.6.7:ws3,ws5,ws7
Output:
socket1:b:localhost:ws3,ws5,ws7
socket2:b:2.5.6.7:ws3,ws5,ws7
I want to remove last three lines of file using ansible. I tried using lineinfile but it removed all the lines from file. I have posted below my file and ansible-playbook. I want to remove nfs_config, nfs_share and mount_path using lines using ansible.Thanks in advance.
file.txt
[images]
[tickets]
[unix sockets]
[nfs_config]
nfs_share=
mount_path=
Ansible-playbook
- name: Remove mount path from daemon.conf for clean-daemon
linefile:
path: /etc/ovirt-imageio-daemon/daemon.conf
regexp: "[nfs_config]"
state: absent
Use ini_file. The task below will remove the nfs_config section from the configuration file
- ini_file:
path: /etc/ovirt-imageio-daemon/daemon.conf
section: nfs_config
state: absent
regexp: "[nfs_config]" is not doing what you want, you need to use "[nfs_config]", otherwise you are matching any character that is between the []. This is why it's removing multiple lines.
https://docs.python.org/2/library/re.html
Also, just make 3 lineinfile command to match nfs_config, nfs_share and mount_path
You could use onee lineinifile with a complex regex to match them all, but it will be easier to read/maintain with 3 that are clear.
I am trying to make sure that a particular line is commented out in a source file.
The line is like this:
CFUNCTYPE(c_int)(lambda: None)
If it exists, I want to comment it out:
# CFUNCTYPE(c_int)(lambda: None)
If it doesn't exist, just ignore it.
If it exists and is already commented out, do nothing.
This is the playbook I wrote, but it doesn't work.
tasks:
- name: fix ctypes file
lineinfile: dest='/usr/local/lib/python2.7/ctypes/__init__.py' regexp="^#?CFUNCTYPE(c_int)(lambda: None)" line='# CFUNCTYPE(c_int)(lambda: None)'
The error says:
This one looks easy to fix. There seems to be an extra unquoted colon in the line
and this is confusing the parser. It was only expecting to find one free
colon. The solution is just add some quotes around the colon, or quote the
entire line after the first colon.
However, it is not easy to fix, and I've tried quoting it in every way I can think of, to no avail.
It's a YAML limitation; the parser likely wants to either see a name, colon, and name=value pairs with no more colons on the line, or just name, colon, and 1 quoted string value.
The lineinfile doc has an example for sudoers mentioning this (and another one further down that doesn't work...) and it references YAML as the problem. This means any time you need to have a colon in a value you may as well quote the entire string of arguments just to save yourself the debugging hassle.
I made it work with this quoting:
lineinfile: "dest='/usr/local/lib/python2.7/ctypes/__init__.py' regexp='^#?CFUNCTYPE(c_int)(lambda: None)' line='# CFUNCTYPE(c_int)(lambda: None)'"
In order to ignore a file that doesn't exist, I used this code:
- stat: path=/usr/local/lib/python2.7/ctypes/__init__.py
register: init
- name: fix ctypes file
replace: "dest='/usr/local/lib/python2.7/ctypes/__init__.py' regexp='^( CFUNCTYPE.c_int..lambda: None.)' replace=' # CFUNCTYPE(c_int)(lambda: None)'"
when: init.stat.exists == True
sudo: yes
I also had to change lineinfile to replace, because the line is prefixed with 4 spaces, and I couldn't get it to match correctly.
I have a file called authorized_keys. I need to delete a particular line using an Ansible script.
The problem is when I try to remove a line that includes a '+' character. Ansible is not able to remove this line.
e.g authorized_keys file is:
.....
abhi foo+bar saken
......(EOF)
I want to remove the abhi foo+bar saken line but Ansible is not removing this line because of the + character.
I am able to remove lines that do not contain a + character .
Task:
- name: Delete keys in sysadmin/.ssh/authoriezd_keys
lineinfile: dest=/home/{{name}}/.ssh/authorized_keys
state=absent
regexp='^{{key}}$'
PS: I am using Ansible's lineinfile module
The problem probably is that + has a meaning in a regular expression.
You should be able to fix it by escaping the +. If you can't do that from the source where {{ key }} is defined, you can escape it with the replace Jinja filter:
- name: Delete keys in sysadmin/.ssh/authoriezd_keys
lineinfile: dest=/home/{{name}}/.ssh/authorized_keys
state=absent
regexp='^{{ key | replace("+", "\+") }}$'
You might run into more problems if {{ key }} contains other characters which have a meaning in regular expressions. If that's the case I think the safe way would be to create your own filter plugin where you simply return the input passed through re.escape.