ansible – 如何在shell命令中更改文件？
发布时间：2020-12-15 21:23:02 所属栏目：安全 来源：网络整理
导读：我有 shell命令生成的文件 - stat: path=/etc/swift/account.ring.gz get_md5=yes register: account_builder_stat- name: write account.ring.gz file shell: swift-ring-builder account.builder write_ring --- rewrite account.ring.gz chdir=/etc/swift
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我有
shell命令生成的文件
- stat: path=/etc/swift/account.ring.gz get_md5=yes
register: account_builder_stat
- name: write account.ring.gz file
shell: swift-ring-builder account.builder write_ring <--- rewrite account.ring.gz
chdir=/etc/swift
changed_when: ??? account_builder_stat.changed ??? <-- no give desired effect
如何检查文件是否已更改？ 解决方法- stat: path=/etc/swift/account.ring.gz get_md5=yes
register: before
- name: write account.ring.gz file
shell: swift-ring-builder account.builder write_ring # update account.ring.gz
chdir=/etc/swift
changed_when: False # without this,as long as swift-ring-builder exits with
# return code 0 this task would always be reported as changed
- stat: path=/etc/swift/account.ring.gz get_md5=yes
register: after
- debug: msg='report this task as "changed" if file changed'
changed_when: "'{{before.stat.md5}}' != '{{after.stat.md5}}'"
- debug: msg='execute this task if file changed'
when: "'{{before.stat.md5}}' != '{{after.stat.md5}}'"
如果您真正想要的是根据swift-ring-builder的结果报告任务’write account.ring.gz file’已更改或未更改,则必须运行mini shell脚本.像这样的东西(未经测试)： - name: write account.ring.gz file
shell: bfr=`md5sum account.ring.gz`; swift-ring-builder account.builder write_ring; aftr=`md5sum account.ring.gz`; test $bfr -eq $aftr
chdir=/etc/swift
或者如果我正确记住了md5sum选项： - name: write account.ring.gz file
shell: echo `md5sum account.ring.gz` account.ring.gz > /tmp/ff; swift-ring-builder account.builder write_ring; md5sum -c /tmp/ff
chdir=/etc/swift
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