I have this variable in twig: banner_image_58
I can access 58 via post.ID
How can I call banner_image_58 whilst using post.ID?
I've tried {{ banner_image_ ~ post.ID }} but that just prints 58.
Related
I am using an if condition utilizing grain item within a state which triggered by reactor.
and I got an error message Jinja variable 'dict object' has no attribute 'environment'
=================================================
REACTOR config:
cat /etc/salt/master.d/reactor.conf
reactor:
- 'my/custom/event':
- salt://reactor/test.sls
==============================
test.sls
cat /srv/salt/reactor/test.sls
sync_grains:
local.saltutil.sync_grains:
- tgt: {{ data['id'] }}
{% if grains['environment'] in ["prod", "dev", "migr"] %}
test_if_this_works:
local.state.apply:
- tgt: {{ data['id'] }}
- arg:
- dummy_state
{% endif %}
===================================
dummy_state/init.sls
cat /srv/salt/dummy_state/init.sls
create_a_directory:
file.directory:
- name: /tmp/my_test_dir
- user: root
- group: root
- makedirs: True
=================================================
salt 'salt-redhat-23.test.local' grains.item environment
salt-redhat-23.test.local:
----------
environment:
prod
=================================================
salt-redhat-23 ~]# cat /etc/salt/grains
role: MyServer
environment: prod
================================================
If I change the test.sls and use instead of custom grain a grain which salt-master is taking by default then it will works. Also it will work without the if condition in the state.
Do you know why this is happening?
Thank you all in advance.
Issue resolved.
You cannot use custom grains with Reactor directly, you need to call another state to be able to add condition there.
for instance:
cat /etc/salt/master.d/reactor.conf
reactor:
- 'my/custom/event':
- salt://reactor/test.sls
test.sls
# run a state using reactor
test_if_this_works:
local.state.apply:
- tgt: {{ data['id'] }}
- arg:
- reactor.execute
execute.sls
{% set tst = grains['environment'] %}
{% if tst in ['prod', 'dev', 'test', 'migr'] %}
create_a_directory:
file.directory:
- name: /tmp/my_test_dir
- user: root
- group: root
- makedirs: True
{% endif %}
this will work with the if condition, if you try to add the if statement on the test.sls it will not work.
How to print new line character when sending emails? I'm sending it to gmail. The character \n prints literally. I even tried </br> tag and yaml mutliline and none of them work.
- alert: KubernetesPodImagePullBackOff
expr: kube_pod_container_status_waiting_reason{reason=~"ContainerCreating|CrashLoopBackOff|ErrImagePull|ImagePullBackOff"} > 0
for: 1s
labels:
severity: warning
annotations:
summary: "Kubernetes pod crash looping (instance {{ $labels.instance }}"
description: "Pod {{ $labels.pod }} is crash looping\n VALUE = {{ $value }}\n LABELS: {{ $labels }}"
You need to rewrite default template in Alertmanager for E-mails.
You need to replace something like
{{ .Annotations.description }}
in template by
{{ .Annotations.description | safeHtml }}
I wrote for my own email template, if you have not your own, you may create it from
https://github.com/prometheus/alertmanager/blob/master/template/default.tmpl
and edit
{{ range .Annotations.SortedPairs }} - {{ .Name }} = {{ .Value }}
in the same manner with
{{ .Value | safeHtml }}
Also read this answer
prometheus using html content in alerts annotations and using it in email template
I don't know it not work.Server environment:
Twig:3.0
PHP:7.X
nginx:1.15.11
{{ include 'Include/header.html' }}
Templates file:
|-index.html
|-content.html
|-Include
|- head.html
|- footer.html
index.php：
$loader = new Twig_Loader_Filesystem(ROOT_PATH.'/Templates');
$twig = new Twig_Environment($loader, [
'cache' => ROOT_PATH.'/Cache',
'auto_reload' => true,
'debug' => true
]);
echo $twig->render('index.html');
index.html：
{{ include 'Include/head.html' }}
<article>
body
<article>
{{ include 'Include/footer.html' }}
it doesn't work,Page is blank.
First, try comment out if in dev
'cache' => ROOT_PATH.'/Cache',
then got typo error
{{ include 'Include/foother.html' }}
to
{{ include 'Include/footer.html' }}
I suggest you try do not include any sub twig first and render simple 1 twig first. If success then just include and try again.
I'm trying to inline this so the rendered page isn't 100,000 lines long.
It seems the spaceless tag does nothing here.
Input:
{% for log in logs -%}
{% spaceless %}
{
id: {{ log.id }},
description: '{{ log.description }}'
},
{% endspaceless %}
{% endfor -%}
Expected Output:
{id:17186,description:'Test Log'},
{id:17187,description:'Test Log 2'},
Output:
{
id: 17186,
description: 'Test Log'
},
{
id: 17187,
description: 'Test Log 2'
},
Like the documentation says, you can "use the spaceless tag to remove whitespace between HTML tags, not whitespace within HTML tags or whitespace in plain text."
You can instead control whitespace e.g. like this:
{% for log in logs -%}
{
{{- 'id' }}: {{ log.id }},
{{- 'description' }}: '{{ log.description }}'
{{- '},' }}
{%- endfor %}
The above produces this:
{id: 17186,description: 'Test Log'},{id: 17187,description: 'Test Log 2'},
The downside is that the Twig code is much uglier.
Here's an alternative using string interpolation:
{% for log in logs -%}
{
{{- 'id' }}: {{ log.id }},
{{- 'description' }}: {{ "'#{log.description}'" -}}
},
{%- endfor %}
{id: 17186,description: 'Test Log'},{id: 17187,description: 'Test Log 2'},
The Twig code looks now better, but notice that single quotes got converted to '. You may or may not want to do something about that.
You could also do like the documentation suggests and use a third-party library like Tidy.
I have a file with variables that I use in my playbook:
net_interfaces:
...
- name: "eth0"
ip: "192.168.1.100"
mask: "255.255.255.0"
gateway: "192.168.1.1"
...
and I want to deploy some configs with this variables, for example ifcfg-eth0:
DEVICE={{ item.name }}
TYPE=Ethernet
ONBOOT=yes
BOOTPROTO=static
IPADDR={{ item.ip }}
NETMASK={{ item.netmask }}
GATEWAY={{ item.gateway }}
but sometimes there is no gateway variable for item and in this case I want to remove string
GATEWAY={{ item.gateway }}
from this config file on the target machine. How can I achieve this without creating another task for a certain hosts?
Add condition:
{% if item.gateway is defined %}
GATEWAY={{ item.gateway }}
{% endif %}
Another (and better) way is to use 'default' filter because in this case we can check if some variable was defined and set it's default value if it wasn't. Example:
{{ my_string_value | default("awesome") }}