[Bug 2047796] Re: autoinstall: user-data validation fails for users or packages if they contain list of object

[Yao Wei]

** Description changed:

- The user-data it will be converted into an object with integer key.
- However, cloud-init considers such merged list as an object instead of
- list, and the schema validator considers object and list differently,
- causing issues like:
+ autoinstall.user-data schema validation failed in the following cases:
  
  * cannot define a user in user-config:
  
  autoinstall:
-   user-data:
-     users:
-     - name: ubuntu
-       plain_text_passwd: 'ubuntu'
-       home: /home/ubuntu
-       shell: /bin/bash
-       lock_passwd: false
-       gecos: Ubuntu all-oem-init
-       groups: [adm, cdrom, dip, lxd, sudo]
+   user-data:
+     users:
+     - name: ubuntu
+       plain_text_passwd: 'ubuntu'
+       home: /home/ubuntu
+       shell: /bin/bash
+       lock_passwd: false
+       gecos: Ubuntu all-oem-init
+       groups: [adm, cdrom, dip, lxd, sudo]
  
  * cannot use packages[#].apt or packages[#].snap which contains a list
  of packages:
  
  autoinstall:
-   user-data:
-     packages:
-     - snap:
-       - certbot
-       - [juju, --edge]
-       - [lxd, --channel=5.15/stable]
-     - apt:
-       - mg
+   user-data:
+     packages:
+     - snap:
+       - certbot
+       - [juju, --edge]
+       - [lxd, --channel=5.15/stable]
+     - apt:
+       - mg
  
  These schemas documented in cloud-init documentations should be usable.

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https://bugs.launchpad.net/bugs/2047796

Title:
  autoinstall: user-data validation fails for users or packages if they
  contain list of object

Status in subiquity package in Ubuntu:
  New

Bug description:
  autoinstall.user-data schema validation failed in the following cases:

  * cannot define a user in user-config:

  autoinstall:
    user-data:
      users:
      - name: ubuntu
        plain_text_passwd: 'ubuntu'
        home: /home/ubuntu
        shell: /bin/bash
        lock_passwd: false
        gecos: Ubuntu all-oem-init
        groups: [adm, cdrom, dip, lxd, sudo]

  * cannot use packages[#].apt or packages[#].snap which contains a list
  of packages:

  autoinstall:
    user-data:
      packages:
      - snap:
        - certbot
        - [juju, --edge]
        - [lxd, --channel=5.15/stable]
      - apt:
        - mg

  These schemas documented in cloud-init documentations should be
  usable.

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