openssh-formula/openssh/map.jinja
Daniel Dehennin ad4385b077 feat(map): config.get lookups from configurable roots
We avoid compatibility break with user pillars by looking up
configuration values using `config.get` in configurable roots.

We provide a new parameter `map_jinja:config_get_roots` in the formula
`parameters/defaults.yaml`to retrives values not only from
`tplroot=openssh` but from `sshd_config` and `ssh_config` too.

We need to update the `_mapdata` reference files to include the new
`map_jinja:config_get_roots`.
2020-07-31 12:59:33 +02:00

205 lines
6.7 KiB
Django/Jinja

# -*- coding: utf-8 -*-
# vim: ft=jinja
{#- Get the `tplroot` from `tpldir` #}
{%- set tplroot = tpldir.split("/")[0] %}
{%- from tplroot ~ "/libsaltcli.jinja" import cli with context %}
{#- Where to lookup parameters source files #}
{%- set map_sources_dir = tplroot | path_join("parameters") %}
{#- Load defaults first to allow per formula default map.jinja configuration #}
{%- set _defaults_filename = map_sources_dir | path_join("defaults.yaml") %}
{%- do salt["log.debug"](
"map.jinja: initialise parameters from "
~ _defaults_filename
) %}
{%- import_yaml _defaults_filename as default_settings %}
{#- List of sources to lookup for parameters #}
{%- do salt["log.debug"]("map.jinja: lookup 'map_jinja' configuration sources") %}
{#- Fallback to previously used grains plus minion `id` #}
{%- set map_sources = [
"osarch",
"os_family",
"os",
"osfinger",
"config_get_lookup",
"config_get",
"id",
] %}
{#- Configure map.jinja from defaults.yaml #}
{%- set map_sources = default_settings | traverse(
"values:map_jinja:sources",
map_sources,
) %}
{#- Lookup global sources #}
{%- set map_sources = salt["config.get"]("map_jinja:sources", map_sources) %}
{#- Lookup per formula sources #}
{%- set map_sources = salt["config.get"](
tplroot ~ ":map_jinja:sources",
map_sources,
) %}
{%- do salt["log.debug"](
"map.jinja: load parameters with sources from "
~ map_sources
) %}
{#- Lookup with `config.get` from configurable roots #}
{%- do salt["log.debug"](
"map.jinja: initialise 'config.get' roots with 'tplroot' "
~ tplroot
) %}
{%- set config_get_roots = [tplroot] %}
{#- Configure `config.get` from defaults.yaml #}
{%- set config_get_roots = default_settings | traverse(
"values:map_jinja:config_get_roots",
config_get_roots
) %}
{#- Lookup global `config.get` roots #}
{%- set config_get_roots = salt["config.get"](
"map_jinja:config_get_roots",
config_get_roots
) %}
{#- Lookup per formula `config.get` roots #}
{%- set config_get_roots = salt["config.get"](
tplroot ~ ":map_jinja:config_get_roots",
config_get_roots,
) %}
{%- do salt["log.debug"](
"map.jinja: load parameters with 'config.get' from roots "
~ config_get_roots
) %}
{#- Work around assignment inside for loop #}
{#- load configuration values used in `config.get` merging strategies #}
{%- set _config = {
"stack": default_settings.get("values", {}),
"merge_strategy": salt["config.get"](tplroot ~ ":strategy", None),
"merge_lists": salt["config.get"](tplroot ~ ":merge_lists", False),
} %}
{#- the `config.get` merge option only works for `minion` or `local` salt command types #}
{%- if cli in ["minion", "local"] %}
{%- do _config.update(
{
"merge_opt": {"merge": _config["merge_strategy"]},
"merge_msg": ", merge: strategy='" ~ _config["merge_strategy"] ~ "'",
}
) %}
{#- the `config.get` merge option is not available for `ssh` or `unknown` salt command types #}
{%- else %}
{%- if _config["merge_strategy"] %}
{%- do salt["log.error"](
"map.jinja: the 'merge' option of 'config.get' is skipped when the salt command type is '"
~ cli
~ "'"
) %}
{%- endif %}
{%- do _config.update(
{
"merge_opt": {},
"merge_msg": "",
}
) %}
{%- endif %}
{#- process each `map.jinja` source #}
{%- for map_source in map_sources %}
{%- if map_source in ["config_get", "config_get_lookup"] %}
{%- for _config_root in config_get_roots %}
{%- set _config_key = {
"config_get": _config_root,
"config_get_lookup": _config_root ~ ":lookup",
}.get(map_source) %}
{%- do salt["log.debug"](
"map.jinja: retrieve '"
~ _config_key
~ "' with 'config.get'"
~ _config["merge_msg"]
) %}
{%- set _config_get = salt["config.get"](
_config_key, default={}, **_config["merge_opt"]
) %}
{#- `slsutil.merge` defaults to `smart` instead of `None` for `config.get` #}
{%- set _strategy = _config["merge_strategy"] | default("smart", boolean=True) %}
{%- do salt["log.debug"](
"map.jinja: merge '"
~ _config_key
~ "' retrieved with 'config.get'"
~ ", merge: strategy='"
~ _strategy
~ "', lists='"
~ _config["merge_lists"]
~ "'"
) %}
{#- Keep values under each root key when there are more than one #}
{%- if config_get_roots|length > 1 %}
{%- set _config_get = { _config_root: _config_get } %}
{%- endif %}
{%- do _config.update(
{
"stack": salt["slsutil.merge"](
_config["stack"],
_config_get,
strategy=_strategy,
merge_lists=_config["merge_lists"],
)
}
) %}
{%- endfor %}
{%- else %}
{#- Lookup the grain/pillar/... #}
{#- Fallback to use the source name as a direct filename #}
{%- set map_values = salt["config.get"](map_source, []) %}
{#- Mangle `map_source` to use it as literal path #}
{%- if map_values | length == 0 %}
{%- set map_source_parts = map_source.split("/") %}
{%- set map_source = map_source_parts[0:-1] | join("/") %}
{%- set map_values = map_source_parts[-1].rstrip(".yaml") %}
{%- endif %}
{#- Some configuration return list #}
{%- if map_values is string %}
{%- set map_values = [map_values] %}
{%- endif %}
{%- for map_value in map_values %}
{%- set yamlfile = map_sources_dir | path_join(
map_source,
map_value ~ ".yaml",
) %}
{%- do salt["log.debug"]("map.jinja: load parameters from file " ~ yamlfile) %}
{%- load_yaml as loaded_values %}
{%- include yamlfile ignore missing %}
{%- endload %}
{%- if loaded_values %}
{#- Merge loaded values on the stack #}
{%- do salt["log.debug"]("map.jinja: merge parameters from " ~ yamlfile) %}
{%- do _config.update(
{
"stack": salt["slsutil.merge"](
_config["stack"],
loaded_values.get("values", {}),
strategy=loaded_values.get("strategy", "smart"),
merge_lists=loaded_values.get("merge_lists", False)
| to_bool,
)
}
) %}
{%- endif %}
{%- endfor %}
{%- endif %}
{%- endfor %}
{%- do salt["log.debug"]("map.jinja: save parameters in variable 'mapdata'") %}
{%- set mapdata = _config["stack"] %}