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chore: Improve debug comments in upstream template

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This commit is contained in:
Richard Hansen 2023-01-26 16:53:52 -05:00
parent 2760ead490
commit 5a8a6ceae2
1 changed files with 17 additions and 11 deletions
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28
nginx.tmpl
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@ -109,17 +109,26 @@
upstream {{ .Upstream }} {
{{- $server_found := false }}
{{- range $container := .Containers }}
# Container: {{ $container.Name }}
{{- /* If only 1 port exposed, use that as a default, else 80 */}}
{{- $defaultPort := (when (eq (len $container.Addresses) 1) (first $container.Addresses) (dict "Port" "80")).Port }}
{{- $port := (coalesce $container.Env.VIRTUAL_PORT $defaultPort) }}
{{- $address := where $container.Addresses "Port" $port | first }}
# Exposed ports: {{ $container.Addresses }}
# Default virtual port: {{ $defaultPort }}
# VIRTUAL_PORT: {{ $container.Env.VIRTUAL_PORT }}
# Exposed ports:{{ range $container.Addresses }} {{ .Port }}/{{ .Proto }}{{ else }} (none){{ end }}
# Default virtual port: {{ $defaultPort }}
# VIRTUAL_PORT: {{ $container.Env.VIRTUAL_PORT }}
{{- if $container.Node.ID }}
# Swarm node name: {{ $container.Node.Name }}
{{- end }}
{{- range $knownNetwork := $networks }}
# Container network reachability from {{ $knownNetwork.Name }}:
{{- range $containerNetwork := sortObjectsByKeysAsc $container.Networks "Name" }}
{{- if (and (ne $containerNetwork.Name "ingress") (or (eq $knownNetwork.Name $containerNetwork.Name) (eq $knownNetwork.Name "host"))) }}
## Can be connected with "{{ $containerNetwork.Name }}" network
{{- if eq $containerNetwork.Name "ingress" }}
# {{ $containerNetwork.Name }} (ignored)
{{- else if and (ne $knownNetwork.Name $containerNetwork.Name) (ne $knownNetwork.Name "host") }}
# {{ $containerNetwork.Name }} (unreachable)
{{- else }}
# {{ $containerNetwork.Name }} (reachable)
{{- if $address }}
{{- /*
* If we got the containers from swarm and this
@ -128,7 +137,6 @@ upstream {{ .Upstream }} {
*/}}
{{- if and $container.Node.ID $address.HostPort }}
{{- $server_found = true }}
# {{ $container.Node.Name }}/{{ $container.Name }}
server {{ $container.Node.Address.IP }}:{{ $address.HostPort }};
{{- /*
* If there is no swarm node or the port is not
@ -136,21 +144,19 @@ upstream {{ .Upstream }} {
*/}}
{{- else if $containerNetwork }}
{{- $server_found = true }}
# {{ $container.Name }}
server {{ $containerNetwork.IP }}:{{ $address.Port }};
{{- end }}
{{- else if $containerNetwork }}
# {{ $container.Name }}
{{- if $containerNetwork.IP }}
{{- $server_found = true }}
server {{ $containerNetwork.IP }}:{{ $port }};
{{- else }}
# /!\ No IP for this network!
# /!\ No IP for this network!
{{- end }}
{{- end }}
{{- else }}
# Cannot connect to network '{{ $containerNetwork.Name }}' of this container
{{- end }}
{{- else }}
# (none)
{{- end }}
{{- end }}
{{- end }}