72 lines
2.9 KiB
Django/Jinja
72 lines
2.9 KiB
Django/Jinja
{#
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# vi:syntax=jinja
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#}
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{#- Generates one known_hosts entry per given key #}
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{%- macro known_host_entry(host, host_names, keys) %}
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{#- Get IPv4 and IPv6 addresses from the DNS #}
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{%- set ip4 = salt['dig.A'](host) -%}
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{%- set ip6 = salt['dig.AAAA'](host) -%}
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{#- The host names to use are to be found within the dict 'host_names'. #}
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{#- If there are none, the host is used directly. #}
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{%- set names = [host_names.get(host, host)] -%}
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{#- Extract the hostname from the FQDN and add it to the names. #}
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{%- if use_hostnames is iterable -%}
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{%- for name in names | sort -%}
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{%- if salt["match.{}".format(hostnames_expr_form)](hostnames_target, minion_id=name) -%}
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{%- set hostname = name.split('.')|first -%}
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{%- if hostname not in names -%}
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{%- do names.append(hostname) -%}
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{%- endif -%}
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{%- endif -%}
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{%- endfor -%}
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{%- endif -%}
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{#- Append IP addresses and aliases (if they are not already present) #}
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{%- for ip in (ip4 + ip6)|sort -%}
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{%- do names.append(ip) -%}
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{%- for alias in aliases_ips.get(ip, []) -%}
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{%- if alias not in names -%}
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{%- do names.append(alias) -%}
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{%- endif -%}
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{%- endfor -%}
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{%- endfor -%}
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{#- Write one line per key; join the names together #}
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{%- for line in keys.split('\n') -%}
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{%- if line -%}
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{{ ','.join(names) }} {{ line }}
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{% endif -%}
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{%- endfor -%}
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{%- endmacro -%}
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{#- Pre-fetch pillar data #}
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{%- set target = salt['pillar.get']('openssh:known_hosts:target', '*') -%}
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{%- set expr_form = salt['pillar.get']('openssh:known_hosts:expr_form', 'glob') -%}
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{%- set keys_function = salt['pillar.get']('openssh:known_hosts:mine_keys_function', 'public_ssh_host_keys') -%}
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{%- set hostname_function = salt['pillar.get']('openssh:known_hosts:mine_hostname_function', 'public_ssh_hostname') -%}
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{%- set use_hostnames = salt['pillar.get']('openssh:known_hosts:hostnames', False) -%}
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{%- set hostnames_target_default = '*' if grains['domain'] == '' else "*.{}".format(grains['domain']) -%}
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{%- set hostnames_target = salt['pillar.get']('openssh:known_hosts:hostnames:target', hostnames_target_default) -%}
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{%- set hostnames_expr_form = salt['pillar.get']('openssh:known_hosts:hostnames:expr_form', 'glob') -%}
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{#- Lookup IP of all aliases so that when we have a matching IP, we inject the alias name
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in the SSH known_hosts entry -#}
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{%- set aliases = salt['pillar.get']('openssh:known_hosts:aliases', []) -%}
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{%- set aliases_ips = {} -%}
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{%- for alias in aliases -%}
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{%- for ip in salt['dig.A'](alias) + salt['dig.AAAA'](alias) -%}
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{%- do aliases_ips.setdefault(ip, []).append(alias) -%}
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{%- endfor -%}
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{%- endfor -%}
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{#- Loop over targetted minions -#}
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{%- set host_keys = salt['mine.get'](target, keys_function, expr_form=expr_form) -%}
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{%- set host_names = salt['mine.get'](target, hostname_function, expr_form=expr_form) -%}
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{%- for host, keys in host_keys|dictsort -%}
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{{ known_host_entry(host, host_names, keys) }}
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{%- endfor -%}
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