How can i use a variable inside a blade array like so
$my_var = 54
array('class'=>'info', 'link'=> '{{ $my_var }}', 'message'=> 'AllRenewals', 'icon'=> 'history')
Laravel seems to not be able to understand its a vairable
change
$my_var = 54
array('class'=>'info', 'link'=> '{{ $my_var }}', 'message'=> 'AllRenewals', 'icon'=> 'history')
to
$my_var = 54
array('class'=>'info', 'link'=> {{ $my_var }}, 'message'=> 'AllRenewals', 'icon'=> 'history')
don't use quotes if you want to access variables in laravel
Related
I would like to generate a synthetic docker ps table but my docker image paths are very long. The solution I am trying to do is to display only the last part of the image name:
This is what I have:
docker ps --format "table {{.Names}}\\t{{.Image}}\\t{{.Status}}\\t{{.Command}}"
NAMES IMAGE STATUS COMMAND
a_container a_local_image Up 36 minutes "python…"
another_container registry.example.com/group/subgroup/project/my_image:latest Up 38 minutes "go…"
I would like:
docker ps --format "table {{.Names}}\\t{{ <magic .Image> }}\\t{{.Status}}\\t{{.Command}}"
NAMES IMAGE STATUS COMMAND
a_container a_local_image Up 36 minutes "python…"
another_container my_image:latest Up 38 minutes "go…"
so basically, get what is after the last /, like basename does.
This is what I tried:
# No fixed length
docker ps --format "table {{ slice .Image 0 10}}"
# No last index available
docker ps --format 'table {{ (split "/" .Image) }}'
Any help or workaround is appreciated.
p.s.: since I use docker cli, I don't think I can define custom functions to use in the template expression.
There is no good way to get the last element of a template array. Even though you can use index and len built-ins, you can't use arithmetic to get len - 1.
This is a template-only trick:
{{ $image := "" }}{{ range split .Image "/" }}{{ $image = . }}{{ end }}{{ $image }}
Basically it does the following:
declare a var $image
split the .Image on /
iterate over the array string and just assign to $image
at the end of the range, $image will hold the value of the last element
print $image
Full command (with enclosing apex ' so you don't have to escape quotes):
docker ps --format 'table {{.Names}}\t{{ $image := "" }}{{ range split .Image "/" }}{{ $image = . }}{{ end }}{{ $image }}\t{{.Status}}\t{{.Command}}'
You may could use next workaround, I put it in a shell file just because it's too long, but you are ok to call it directly in shell.
test.sh
paste <(docker ps --format 'table {{.ID}}') \
<(docker ps --format 'table {{.Image}}' | awk -F '/' '{print $NF}') \
<(docker ps --format 'table {{.Command}} {{.CreatedAt}} {{.Status}} {{.Ports}} {{.Names}}')
Explain:
docker ps --format 'table {{.ID}}' get the ID column of docker ps
docker ps --format 'table {{.Image}}' | awk -F '/' '{print $NF}'), frist get the Image column, then use awk to split /, get the last sub column as you required.
the left is used to get remained columns as you needed of docker ps
Finally, use paste command to combine the output of above command.
I've managed to get what docker images have been deployed but it has to be written in groovy.
I have the following:
sh script: '''
export PATH=\"$PATH\":\"${WORKSPACE}\"
for docker-image in interface data keycloak artifactory ; do
DOCKERHOST=`echo ${DOCKERURL}/images-rancher/$docker-image | sed 's!^localhost://!!g'`
DOCKERVERSION=`docker image ls ${DOCKERHOST} --format '{{ json .Tag }}' | head -1`
echo "${DOCKERHOST} - ${DOCKERVERSION}"
done
'''
Changing it into groovy:
def image = [ "interface", "data" , "keycloak", "artifactory" ]
.
.
.
for docker-image in image
println docker-image
How would you put that in a groovy script?
Thanks
Here's how you can get most of the way to using Groovy instead of bash. The doRegexManipulation() function is left as an exercise for you to implement.
Note that the docker image ls sh step is still required, and cannot be translated to "pure" Groovy.
withEnv(["PATH=${env.PATH}:${env.WORKSPACE}"]) {
def images = [ "interface", "data" , "keycloak", "artifactory" ]
for (String docker_image : images) {
def DOCKERHOST = doRegexManipulation("${DOCKERURL}/images-rancher/$docker_image")
def DOCKERVERSION = sh(
script: """docker image ls '${DOCKERHOST}' --format '{{ json .Tag }}' | head -1""",
returnStdout: true,
)
echo "${DOCKERHOST} - ${DOCKERVERSION}"
}
}
If you wanted to, you can go one step further and replace the head -1 part with Groovy code, since that can be done in Groovy as well.
The withEnv step is documented here. It is used to set environment variables for a block of Groovy code, thereby making those environment variables available to any child processes spawned in the block of Groovy code.
'{{ lookup(\"cyberarkpassword\", {\"appid\": \"component\", \"query\": \"safe=component-name;folder=root;object=$HOST_NAME-svcaccount-$HOST_IP\",\"output\": \"Password\"}).0.password }}'
I am assigning the above json data to one variable like the below
def cyberark='{{ lookup(\\"cyberarkpassword\\", {\\"appid\\": \\"component\\", \\"query\\": \\"safe=component-name;folder=root;object=$HOST_NAME-svcaccount-$HOST_IP\\",\\"output\\": \\"Password\\"}).0.password }}'
I am passing this cyberark variable to the ansible extra variable as ansible_ssh_passwd, the output is like below.
ansible_ssh_password='{{ lookup("cyberarkpassword", {"appid": "component", "query": "safe=component-name;folder=root;object=$HOST_NAME-svcaccount-$HOST_IP","output": "Password"}).0.password }}'
I don't know how to substitute this $HOST_NAME and $HOST_IP variable in json_data which is passing to the ansible.
To access environment variables on a controller host (I hope I got your problem right) you can use env lookup plugin.
foo: '{{ lookup("env", "HOST_NAME") }}'
I created an docker image that has few labels, here is my Dockerfile section on LABELS:
grep LABEL Dockerfile
LABEL "css1"="/var/www/css1"
LABEL "css2"="/var/www/css2"
LABEL "img"="/var/www/img"
LABEL "js"="/var/www/js"
Then:
docker image inspect --format='{{.Config.Labels}}' labels-test
map[css1:/var/www/css1 css2:/var/www/css2 img:/var/www/img js:/var/www/js]
I need to get for example all labels starting with css. This is as far as i was able to figure:
docker image inspect --format='{{range $k,$v:=.Config.Labels}}{{$k}}:{{$v}} {{end}}' labels-test
css1:/var/www/css1 css2:/var/www/css2 img:/var/www/img js:/var/www/js
Desired output would be:
css1:/var/www/css1 css2:/var/www/css2
The Go template functions are available in golang docco
eq can test if arg1 == arg2.
printf "%.3s" $k will give you the first 3 chars of a string.
docker image inspect \
--format='{{ range $k,$v:=.Config.Labels }}{{ if eq (printf "%.3s" $k) "css" }}{{ $k }}:{{ $v }} {{end}}{{end}}' \
IMAGE
You might want to look at the querying the Docker API images endpoint /images/IMAGE/json directly or processing the JSON output somewhere if you need to do any more advanced processing:
docker image inspect \
--format='{{json .Config.Labels}}' \
IMAGE
You can do something like
docker inspect --format='{{index (index (.Config.Labels)).css1 }}' labels-test
which shows for me
/var/www/css1
and also
docker inspect --format='{{index (index (.Config.Labels)).css2 }}' labels-test
which shows for me
/var/www/css2
See my previous answer on that subject
How to get ENV variable when doing Docker Inspect
Edit
The following gives exactly what you ask for
docker inspect --format='{{index (index (.Config.Labels)).css1 }} {{index (index (.Config.Labels)).css2 }} labels-test
as i get
/var/www/css1 /var/www/css2
How to escape double curly braces in Ansible 1.9.2?
For instance, how can I escape double curly braces in the following shell command?
- name: Test
shell: "docker inspect --format '{{ .NetworkSettings.IPAddress }}' instance1"
Whenever you have problems with conflicting characters in Ansible, a rule of thumb is to output them as a string in a Jinja expression.
So instead of {{ you would use {{ '{{' }}:
- debug: msg="docker inspect --format '{{ '{{' }} .NetworkSettings.IPAddress {{ '}}' }}' instance1"
Topic "Escaping" in the Jinja2 docs.
This:
- name: Test
shell: "docker inspect --format {% raw %}'{{ .NetworkSettings.IPAddress }}' {% endraw %} instance1"
Should work
Another way to do is using backslashes like \{\{ .NetworkSettings.IPAddress \}\}
Hope it helps
Tried on with ansible 2.1.1.0
{%raw%}...{%endraw%} block seems the clear way
- name: list container images and name date on the server
shell: docker ps --format {%raw%}"{{.Image}} {{.Names}}"{%endraw%}
Only need to escape leading '{{'
tasks:
- name: list container images and names
shell: docker ps --format "{{'{{'}}.Image}} {{'{{'}}.Names}}"
No harm to escap the tailing '}}', except more difficult to read.
tasks:
- name: list container images and names
shell: docker ps --format "{{'{{'}}.Image{{'}}'}} {{'{{'}}.Names{{'}}'}}"
Backslash '\' seems do not work
New in Ansible 2.0 is the ability to declare a value as unsafe with the !unsafe tag.
In your example you could do:
- name: Test
shell: !unsafe "docker inspect --format '{{ .NetworkSettings.IPAddress }}' instance1"
See the docs for details.
I have a similar issue: i need to post a JSON doc made from a jinja2 template containing some go templates variables (yes, i know :-P), such as
"NAME_TEMPLATE": %{{service_name}}.%{{stack_name}}.%{{environment_name}}
Trying to fence this part of the template between
{% raw %} ... {% endraw %}
didn't work because there is some sort of magic in ansible which will run the template and variable substition twice (i'm not sure about that, but it definitively looks like this)
You end up with "undefined variable service_name" when trying to use the template...
So i ended up using a combination of !unsafe and {% raw %} ... {% endraw %} to define a fact that's later used in the template.
- set_fact:
__rancher_init_root_domain: "{{ rancher_root_domain }}"
#!unsafe: try to trick ansible into not doing substitutions in that string, then use %raw% so the value won't substituted another time
__rancher_init_name_template: !unsafe "{%raw%}%{{service_name}}.%{{stack_name}}.%{{environment_name}}{%endraw%}"
- name: build a template for a project
set_fact:
__rancher_init_template_doc: "{{ lookup('template', 'templates/project_template.json.j2') }}"
the template contains this:
"ROOT_DOMAIN":"{{__rancher_init_root_domain}}",
"ROUTE53_ZONE_ID":"",
"NAME_TEMPLATE":"{{__rancher_init_name_template }}",
"HEALTH_CHECK":"10000",
and the output is ok:
"NAME_TEMPLATE": "%{{service_name}}.%{{stack_name}}.%{{environment_name}}",
Here's a shorter alternative to udondan's answer; surround the whole string with double brackets:
shell: "docker inspect --format {{ '{{ .NetworkSettings.IPAddress }}' }} instance1"
The solution by using raw has been already mentioned but the command in the answer before unfortunately didn't work for me.
Without ansible:
docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' docker_instance_name
With ansible:
- name: Get ip of db container
shell: "{% raw %}docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' docker_instance_name{% endraw %}"
register: db_ip_addr
- debug:
var: db_ip_addr.stdout
I managed to work around my issue using a small script:
#!/usr/bin/env bash
docker inspect --format '{{ .NetworkSettings.IPAddress }}' "$1"
And the following Ansible play
- copy:
src: files/get_docker_ip.sh
dest: /usr/local/bin/get_docker_ip.sh
owner: root
group: root
mode: 0770
- shell: "/usr/local/bin/get_docker_ip.sh {{ SWIFT_ACCOUNT_HOSTNAME }}"
register: swift_account_info
Nevertheless, it's very surprising that Ansible doesn't allow escaping double curly braces!
I was unable to get #Ben's answer to work (shell: !unsafe ...)
What follows here is a complete (and working!) answer to the OP's question, updated for Ansible >2.0
---
# file: play.yml
- hosts: localhost
connection: local
gather_facts: no
vars:
# regarding !unsafe, please see:
# https://docs.ansible.com/ansible/latest/user_guide/playbooks_advanced_syntax.html
#
- NetworkSettings_IPAddress: !unsafe "{{.NetworkSettings.IPAddress}}"
tasks:
- shell: "docker inspect --format '{{NetworkSettings_IPAddress}}' instance1"
register: out
- debug: var="{{item}}"
with_items:
- out.cmd
- out.stdout
outputs: ([WARNINGS] removed)
# ansible-playbook play.yml
PLAY [localhost] ***************************************************************
TASK [shell] *******************************************************************
changed: [localhost]
TASK [debug] *******************************************************************
ok: [localhost] => (item=out.cmd) => {
"item": "out.cmd",
"out.cmd": "docker inspect --format '{{.NetworkSettings.IPAddress}}' instance1"
}
ok: [localhost] => (item=out.stdout) => {
"item": "out.stdout",
"out.stdout": "172.17.0.2"
}
PLAY RECAP *********************************************************************
localhost : ok=2 changed=1 unreachable=0 failed=0
# ansible --version | head -1
ansible 2.6.1
Here is a mostly clean and Ansible native workaround not depending on docker --inspect with curly braces. We assume we have just referenced one container with the Ansible docker module before:
- name: query IP of client container
shell: "docker exec {{ docker_containers[0].Id }} hostname -I"
register: _container_query
- name: get IP of query result
set_fact:
_container_ip: "{{ _container_query.stdout | regex_replace('\\s','') }}"
You now have the IP of the Docker container in the Variable _container_ip. I also published this workaround on my article The Marriage of Ansible with Docker.
[Update 2015-11-03] Removed whitespaces of the stdout of the container query.
[Update 2015-11-04] BTW, there were two pull requests in the official Ansible repository, that would made this workaround needless by recovering the facts returned by the Docker module. So you could acces the IP of a docker container via docker_containers[0].NetworkSettings.IPAddress. So please vote for those pull requests:
fixed broken facts #1457
docker module: fix regressions introduced by f38186c and 80aca4b #2093