Use Jinja2 templates via cli
$ pip install jinja2-tools
Usage: jinja render [OPTIONS]
Options:
-d, --data TEXT PATH to YAML or JSON data file, URL or '-' for
stdin.
-t, --template TEXT PATH to directory or to any file that uses Jinja,
URL or '-' for stdin.
-v, --verbose
-tb, --no-trim-blocks Disable trim blocks.
-lb, --no-lstrip-blocks Disable lstrip blocks.
-o, --output PATH PATH for output, stdout by default.
-e, --extra-var TEXT key value pair separated by '='. 'value' will be
treated as JSON or as a string in case of JSON
decoding error. This will take precedence over
'data'.
--help Show this message and exit.
trim_blocks and lstrip_blocks are used by default, to disable them use -tb or -lb respectively.
-
Use path from the filesystem for data & template:
➜ jinja render -d examples/data/data.yaml -t examples/templates/template.yaml (1) ip access-list extended al-hq-in (2) (3) remark Allow traffic from hq to local office (4)(2) (3) permit 10.0.0.0/22 10.100.0.0/24 (5)(6) (7) # All ACLs have been generated -
Use stdin for data & URL for template, also disable trim blocks & lstrip blocks:
➜ jinja render -d - -t https://raw.githubusercontent.com/Avielyo10/jinja2-tools/master/examples/templates/template.yaml -lb -tb < examples/data/data.yaml (1) ip access-list extended al-hq-in (2) (3) remark Allow traffic from hq to local office (4) (2) (3) permit 10.0.0.0/22 10.100.0.0/24 (5) (6) (7) # All ACLs have been generated -
Verbose:
➜ jinja render -d examples/data/data.yaml -t examples/templates/template.yaml -v ---------- [Data] ---------- { "access_lists": { "al-hq-in": [ { "action": "remark", "text": "Allow traffic from hq to local office" }, { "action": "permit", "src": "10.0.0.0/22", "dst": "10.100.0.0/24" } ] } } ---------- [Template] ---------- {% for acl, acl_lines in access_lists.items() %}(1) ip access-list extended {{ acl }} {% for line in acl_lines %}(2) (3){% if line.action == "remark" %} remark {{ line.text }} (4){% elif line.action == "permit" %} permit {{ line.src }} {{ line.dst }} (5){% endif %} {% endfor %}(6) {% endfor %}(7) # All ACLs have been generated (1) ip access-list extended al-hq-in (2) (3) remark Allow traffic from hq to local office (4)(2) (3) permit 10.0.0.0/22 10.100.0.0/24 (5)(6) (7) # All ACLs have been generated -
Pass the data using multiple extra vars:
➜ jinja render -t examples/templates/template.yaml \ -e access_lists='{"al-hq-in": [{"action": "remark", "text": "Allow traffic from hq to local office"}, {"action": "permit", "src": "10.0.0.0/22", "dst": "10.100.0.0/24"}]}' \ -e message=world \ -v ---------- [ExtraVars] ---------- { "access_lists": { "al-hq-in": [ { "action": "remark", "text": "Allow traffic from hq to local office" }, { "action": "permit", "src": "10.0.0.0/22", "dst": "10.100.0.0/24" } ] }, "message": "world" } ---------- [Template] ---------- {% for acl, acl_lines in access_lists.items() %}(1) ip access-list extended {{ acl }} {% for line in acl_lines %}(2) (3){% if line.action == "remark" %} remark {{ line.text }} (4){% elif line.action == "permit" %} permit {{ line.src }} {{ line.dst }} (5){% endif %} {% endfor %}(6) {% endfor %}(7) hello {{ message }}! # All ACLs have been generated (1) ip access-list extended al-hq-in (2) (3) remark Allow traffic from hq to local office (4)(2) (3) permit 10.0.0.0/22 10.100.0.0/24 (5)(6) (7) hello world! # All ACLs have been generated -
Use directory option
➜ jinja render -d examples/data/data.yaml -t examples/ -o test/ ➜ tree test/ test/ ├── config │ ├── example.ini │ └── example.properties ├── data │ ├── data.json │ └── data.yaml └── templates ├── lookup.yaml └── template.yaml 3 directories, 6 files ➜ cat test/templates/template.yaml (1) ip access-list extended al-hq-in (2) (3) remark Allow traffic from hq to local office (4)(2) (3) permit 10.0.0.0/22 10.100.0.0/24 (5)(6) (7) hello jinja! # All ACLs have been generated
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