How can I pass a parameter to a role in Ansible from inventory file? -


i have set of roles unique , use common role pulled in via dependency perform bunch of same actions these other roles need have done. need able pass specific role parameter in case pull docker image registry, in other case save image out , other things. variables cause issues explicit host , might have several roles per host. how can structure ansible playbook this?

example: have common role pulled other roles dependency:

---  - name: included playbook - vars see   debug:         msg: "name pull: {{ imagename }}"  - name: local running   debug:         msg: "local option selected"   when: localimage == "true"  - name: not local   debug:         msg: "not local remote"   when: localimage == "false"

then primary role tasks\main.yml

---  - name: included playbook - vars see primary   vars:         myname: "{{ imagemainname }}"   debug:         msg: "name-primary: {{ myname }}"

and meta\main.yml

---  dependencies:    - { role: image-pull, imagename: "{{ imagemainname }}" }

this same second role ---

- name: included playbook - vars see second   vars:         myname: "{{ secondname }}"   debug:         msg: "name-second: {{ myname }}"

and meta\main.yml

---  dependencies:    - { role: image-pull, imagename: "{{ secondname }}" }

my main playbook calls both primary , second roles , role specific vars works fine. 

---  - name: master   hosts: imagemaster   remote_user: root   vars:          imagemainname: "top dog"   roles:         - image-master  - name: second   hosts: second   remote_user: root   vars:          imagemainname: "second dog"   roles:         - second

what doesn't work when want state option or b in "pulled" role.

if inventory file looks this:

[imagemaster] 127.0.0.1  [imagemaster:vars] localimage=false  [second] 127.0.0.1  [second:vars] localimage=true

it doesn't work whatever last entry localimage roles use.

what can pass in inventory/host_vars/etc means playbook doesn't change every iteration in setup?

if plan apply primary , secondary role same host (as in example (127.0.0.1), have no options:

within section, redefining var overwrite previous instance. if multiple groups have same variable, last 1 loaded wins. if define variable twice in play’s vars: section, 2nd 1 wins.

(from docs)

if plan apply them different hosts, test properly, e.g.:

[imagemaster] 127.0.0.1  [imagemaster:vars] localimage=false  [second] 127.0.1.1  [second:vars] localimage=true

in scenario, when role (primary/secondary) applied imagemaster group, localimage=false; when applied second group – localimage=true.


Comments

Post a Comment

Popular posts from this blog

How to understand 2 main() functions after using uftrace to profile the C++ program? -

i trying uftrace profile following simple c++ program: #include <iostream> class { public: a() {std::cout << "a created" << std::endl;} ~a() {std::cout << "a destroyed" << std::endl;} }; int main() { a; return 0; } the profile result this: # uftrace a.out created destroyed # duration tid function 2.026 [ 4828] | __cxa_atexit(); [ 4828] | main() { [ 4828] | __static_initialization_and_destruction_0() { 89.397 [ 4828] | std::ios_base::init::init(); 0.768 [ 4828] | __cxa_atexit(); 93.029 [ 4828] | } /* __static_initialization_and_destruction_0 */ 94.425 [ 4828] | } /* main */ [ 4828] | main() { [ 4828] | a::a() { 11.104 [ 4828] | std::operator <<(); 10.825 [ 4828] | std::basic_ostream::operator <<(); 24.514 [ 4828] | } /* a::a */ [ 4828] | a::~a() { 0.978 [ 4828] | ...
Read more

c# - Update a combobox from a presenter (MVP) -

i using mvp in project, new in mvp. have 2 comboboxes. when select option in combobox, combobox should filled new data. this action in presenter. view 'view1' in presenter, , introduced combobox1 , combobox2 properties in 'view1', because need 'datasource', 'displaymember', 'valuemember' , 'refresh()' in method below. but, when using pattern, enough send property like public string combobox2 { { return combobox1.selectedvalue.tosstring(); } } into presenter not whole combobox. how can solve problem? public void onselectedindexchangedcombobox1() { if (view1.combobox1.selectedindex == -1) { return; } datatable dt = tools.getdatatable("a path"); var query = (from o in dt.asenumerable() o.field<string>("afield") == farmerview.combobox1.selectedvalue.tostring() orderby o.field<string>("anotherfield") select...
Read more

How to put a lock and transaction on table using spring 4 or above using jdbcTemplate and annotations like @Transactional? -

i trying put lock on table while writing on table , if happened in between roll-back . trying convert below code lock table test_g1 read; lock table test_g write; -- begin; start transaction; insert test_g1 values(143); insert test_g values(145); select * test_g1; select * test_g; rollback; select * test_g; unlock tables; how convert above code @transactional spring jdbctemplate code? @transactional(rollbackfor={dataaccessexception.class}) public void test(){ jdbctemplate.execute("insert test1 (id, nam) values (4, 'a')"); throw new dataaccessexception("error") { }; } here trying throw error, insert statement should rollback it's not happening . thanks edit-1 attaching code , doing in jdbcdaoimpl.java , mentioned problem comment above test() . app.java package com.cgiri.javabrains.spring4; import org.springframework.beans.factory.annotation.autowired; import org.springframework.context.applic...
Read more