Template: use keyOrDefault instead of key_or_default

[gokhansengun]

Details

Nomad v0.5.0
Linux, Ubuntu, 4.4.0-31-generic, x86_64

Issue

Using the template stanza, deprecated function key_or_default is required instead of keyOrDefault.

Using a config like below in the template file;

global
    maxconn {{keyOrDefault "lbs/maxconn" "1000"}}

produces following error

Killing task: consul-template: template: template: haproxy.ctmpl:2: function "keyOrDefault" not defined

It obviously seems to be related with the packaged consul-template version. Opening this to track for next versions.

[dadgar]

Believe we just need to re-vendor consul-template

[github-actions]

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