document force_pull and :latest tag interaction
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@ -88,9 +88,10 @@ The `docker` driver supports the following configuration in the job spec. Only
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* `extra_hosts` - (Optional) A list of hosts, given as host:IP, to be added to
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* `extra_hosts` - (Optional) A list of hosts, given as host:IP, to be added to
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`/etc/hosts`.
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`/etc/hosts`.
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* `force_pull` - (Optional) `true` or `false` (default). Always pull latest image
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* `force_pull` - (Optional) `true` or `false` (default). Always pull most recent image
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instead of using existing local image. Should be set to `true` if repository tags
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instead of using existing local image. Should be set to `true` if repository tags
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are mutable.
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are mutable. If image's tag is `latest` or omitted, the image will always be pulled
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regardless of this setting.
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* `hostname` - (Optional) The hostname to assign to the container. When
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* `hostname` - (Optional) The hostname to assign to the container. When
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launching more than one of a task (using `count`) with this option set, every
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launching more than one of a task (using `count`) with this option set, every
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