Question

我在SaltStack状态下使用了一个Jinja一对多键值字典：

{% for key in {'bash history': ['bash_history-backup.sh', 'History backup'],
                  'empty trash': ['delete-trash-files.sh', 'Delete trash files'],
                  'keepass backup': ['keepass-backup.sh', 'Backup KeePass'],
                  'db backup': ['mysql-backup.sh', 'Backup MySQL']} %}
{{ [key][0] }}:
  cron.present:
    - name: /home/vplagov/scripts/{{ [key][0] }}
    - user: vplagov
    - minute: 20
    - hour: 1
    - comment: 
    - require:
      - git: checkout latest bash_history backup
{% endfor %}

我要实现的是不仅要通过此字典中的键进行迭代，而且还要通过分配给该键的值进行迭代。例如，在name中使用第一个值，在comment中使用第二个值，依此类推。目前，我已经设法使用[key][0]语句遍历键，如上所示。

我是否需要在内部使用第二个循环来迭代每个键的值？而我该怎么做呢？

Answer 1

您是否尝试过设置项目变量？

from jinja2 import Template
tmpl = """
{% set items = {'bash history': ['bash_history-backup.sh', 'History backup'],
                  'empty trash': ['delete-trash-files.sh', 'Delete trash files'],
                  'keepass backup': ['keepass-backup.sh', 'Backup KeePass'],
                  'db backup': ['mysql-backup.sh', 'Backup MySQL']} %}
{% for key in items %}
{{ [key][0] }}:
  cron.present:
    - name: /home/vplagov/scripts/{{ items[key][0] }}
    - user: vplagov
    - minute: 20
    - hour: 1
    - comment: {{items[key][1]}}
    - require:
      - git: checkout latest bash_history backup
{% endfor %}
"""

template = Template(tmpl)
print(template.render())

Answer 2

从字面上看，您可以执行以下操作：

{%- set cronjobs = {'key1': [val1, val2], 'key2': [val1, val2]} %}
{%- for key, values in cronjobs.items() %}
{{ values[0] }}:
  cron.present:
    - name: /home/vplagov/scripts/{{ values[0] }}
    - comment: {{ values[1] }}
    # fixed values here...
{%- endfor %}

但是，如果您的示例接近您的实际用例，那么我认为您只需要简单的命令即可。看看这是否更适合您的需求：

{%- load_yaml as cronjobs %}
bash-history-backup.sh: History backup
delete-trash-files.sh: Delete trash files
keepass-backup.sh: Backup keepass
# ...more here...
{%- endload %}

{%- for script, comment in cronjobs.items() %}
cronjob-{{ script }}:
  cron.present:
    - name: /home/vplagov/scripts/{{ script }}
    - comment: {{ comment }}
    - minute: 20
    # etc
{%- endfor %}

通过SaltStack中的一对多键值Jinja字典进行迭代

2 个答案: