risky-shell-pipe¶
此规则检查 Ansible shell
模块中 bash 的 pipefail
选项。
当将一个命令的输出管道传输到另一个命令时,您应该始终设置 pipefail
。管道的返回状态是命令的退出状态。如果第一个命令失败,pipefail
选项可确保任务按预期失败。
由于此要求不适用于 PowerShell,对于 executable
属性内部具有 pwsh
的 shell 命令,此规则不会触发。
有问题的代码¶
---
- name: Example playbook
hosts: localhost
tasks:
- name: Pipeline without pipefail
ansible.builtin.shell: false | cat
正确的代码¶
---
- name: Example playbook
hosts: localhost
become: false
tasks:
- name: Pipeline with pipefail
ansible.builtin.shell:
cmd: set -o pipefail && false | cat
executable: /bin/bash
- name: Pipeline with pipefail, multi-line
ansible.builtin.shell:
cmd: |
set -o pipefail # <-- adding this will prevent surprises
false | cat
executable: /bin/bash