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fix: install nginx catch-all default site in dokku container

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Pre-seeds the `dokku/install_default_site` debconf answer to `true` so the dokku postinst installs `/etc/nginx/conf.d/00-default-vhost.conf` during image build. Without this, debconf returned an empty value in non-interactive docker builds, the postinst's `setup-default-site` short-circuited, and nginx had no listener on port 80 - which left the readiness sentinel untouched and the container stuck unhealthy.
This commit is contained in:
Jose Diaz-Gonzalez
2026-05-10 22:54:49 -04:00
parent 2c274217de
commit 66eb1340f5
1 changed files with 1 additions and 0 deletions
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@@ -45,6 +45,7 @@ RUN mkdir -p /etc/apt/keyrings \
&& echo "dokku dokku/hostname string $DOKKU_HOSTNAME" | debconf-set-selections \
&& echo "dokku dokku/skip_key_file boolean $DOKKU_SKIP_KEY_FILE" | debconf-set-selections \
&& echo "dokku dokku/vhost_enable boolean $DOKKU_VHOST_ENABLE" | debconf-set-selections \
&& echo "dokku dokku/install_default_site boolean true" | debconf-set-selections \
&& curl -sSL https://packagecloud.io/dokku/dokku/gpgkey | apt-key add - \
&& echo "deb https://packagecloud.io/dokku/dokku/ubuntu/ noble main" | tee /etc/apt/sources.list.d/dokku.list \
&& mkdir -p /etc/nginx/ \