Second Edition: an extra example requested (page 96)

• On page 96 you show a debug task - displaying the variable ansible_eth0
• Later you show how to access an attribute of this variable:

{{ ansible_eth0.ipv4.address }}
{{ ansible_eth0['ipv4']['address'] }}

• I have a similar variable - with an element like: {{ ansible_eth0.ipv6 }}

However, I have not figured out how to access ipv6 address of “fe80::…”

• In the debug information ipv4 is { “address”: “value”, “netmask”: “value”, … }
• but ipv6 first element is `[ { “address”: “value”, … } ], “macaddress”: “value”, …

I keep struggling over the additional [ ...] bracketing - and would really appreciate a concise explanation of this syntax.

Update: I want to make much more use of ansible_facts and use readily available information such as:

        "en0": {
            "device": "en0",
            "flags": [
                "UP",
                "BROADCAST",
                "NOTRAILERS",
                "RUNNING",
                "SIMPLEX",
                "MULTICAST",
                "GROUPRT",
                "64BIT",
                "CHECKSUM_OFFLOAD(ACTIVE)",
                "LARGESEND",
                "CHAIN"
            ],
            "ipv4": [
                {
                    "address": "192.168.129.64",
                    "broadcast": "192.168.129.255",
                    "netmask": "255.255.255.0",
                    "network": "192.168.129.0"
                },
                {
                    "address": "192.168.127.64",
                    "broadcast": "192.168.127.255",
                    "netmask": "255.255.255.0",
                    "network": "192.168.127.0"
                },
                {
                    "address": "10.1.0.77",
                    "broadcast": "10.1.1.255",
                    "netmask": "255.255.254.0",
                    "network": "10.1.0.0"
                }
            ],
            "ipv6": [
                {
                    "address": "fe80::fff1:feff:fea3:c744",
                    "prefix": "64"
                }
            ],

• I’d rather not have to take a course on Python programming to understand how to quickly work through dict(s) containing lists of dicts (containing dicts containing lists of dicts - or is it lists containing dicts of lists, etc…

[aixtools]

• (I) Don’t take it personally.
• you are an author - and extremely experienced
• my humble goal is to give a peek into the novice’s mind - and where it gets frustrating.

[geerlingguy]

@aixtools - I may consider expanding more on the basics of extracting variables from ansible_facts and the like, but please don’t take the closure of this issue personally, it’s just that the topic of debugging + grabbing values from various places in Ansible’s fact-gathering mess already takes me way more time than it should too…