20210917 Mosquitto - HTTP not HTTPS during build + health check - old-menu branch - PR 2 of 3 #407
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A problem affecting the build of the Mosquitto container keeps showing up in Discord questions. Examples: * [2021-09-17](https://discord.com/channels/638610460567928832/638610461109256194/888096248761045022) * [2021-09-09](https://discord.com/channels/638610460567928832/638610461109256194/885494986710335498) The problem is discussed in [alpinelinux/docker-alpine issues/98](alpinelinux/docker-alpine#98). It is not clear whether: 1. The problem is transient (ie those reporting it are able to get past the problem on a retry); 2. Only affects Mosquitto or potentially affects other Alpine-based IOTstack containers using `apk` to add packages (eg Node-RED); or 3. Environmental (eg if there is a proxy system between the Raspberry Pi and dl-cdn.alpinelinux.org). This Pull Request is implementing the patch suggested by Issue 98 of reverting `apk` requests to use HTTP. Given the march towards HTTPS-everywhere, reverting to HTTP might seem inadvisable but: * Issue 98 was opened in July 2020. * There seems to have been no significant progress towards its resolution since January 2021. * The Discord traffic suggests it is an ongoing and present issue for IOTstack users.
Adds health-check script to template. Alters Dockerfile to import health-check script and adds `HEALTHCHECK` directive. All container documentation is in master branch.
Paraphraser
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A problem affecting the build of the Mosquitto container keeps showing
up in Discord questions. Examples:
The problem is discussed in alpinelinux/docker-alpine issues/98.
It is not clear whether:
the problem on a retry);
IOTstack containers using
apkto add packages (eg Node-RED); orand dl-cdn.alpinelinux.org).
This Pull Request is implementing the patch suggested by Issue 98 of
reverting
apkrequests to use HTTP.Given the march towards HTTPS-everywhere, reverting to HTTP might seem
inadvisable but:
resolution since January 2021.
IOTstack users.