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Knut Ahlers 2021-04-12 00:33:06 +02:00
commit 87558f5c9e
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Dockerfile Normal file
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FROM alpine
ARG GOSU_VERSION=1.12
ARG KORVIKE_VERSION=0.10.0
COPY build.sh /usr/local/bin/container-build
RUN set -ex \
&& apk add --no-cache \
bash \
&& /usr/local/bin/container-build
COPY docker-entrypoint.sh /usr/local/bin/docker-entrypoint
VOLUME /data
EXPOSE 16667
CMD ["/usr/local/bin/docker-entrypoint"]

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README.md Normal file
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# Luzifer-Docker / znc
This container setup contains a ZNC IRC bouncer setup with automatic config bootstrap support.
## Configuration
The container can be configured on first startup and should have a volume mounted at `/data`. If the file `/data/configs/znc.conf` does exist **all environment config is ignored**.
Available environment config:
- `LISTEN_PORT` - 16667 - Where to listen (you should not use 6667-6669 as modern browsers will block your access to them)
- `USE_IPV4` - true - Listen on IPv4 IPs
- `USE_IPV6` - true - Listen on IPv6 IPs
- `USER` - admin - Initial user to create
- `PASS` - <generated> - Password to set for the user (if auto-generated the password will be logged to STDERR)
After the initial startup you can configure the ZNC instance through the web-interface.

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build.sh Executable file
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#!/bin/bash
set -euxo pipefail
makepkgs=(
curl
)
runpkgs=(
znc
)
# Install required package
apk --no-cache add "${makepkgs[@]}" "${runpkgs[@]}"
# Add gosu for privilege de-escalation
curl -sSfLo /usr/local/bin/gosu "https://github.com/tianon/gosu/releases/download/${GOSU_VERSION}/gosu-amd64"
chmod +x /usr/local/bin/gosu
# Add korvike for template processing
curl -sSfL "https://github.com/Luzifer/korvike/releases/download/v${KORVIKE_VERSION}/korvike_linux_amd64.tar.gz" | tar -xz -C /usr/local/bin
mv /usr/local/bin/korvike_linux_amd64 /usr/local/bin/korvike
# Remove make-only packages
apk --no-cache del "${makepkgs[@]}"

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#!/bin/bash
set -eu
maincfg=/data/configs/znc.conf
[[ -f $maincfg ]] || {
echo "WARNING: No configuration file found, will generate the default config now..." >&2
password_salt="$(tr -dc 'A-Za-z0-9!?.,:;/*-+_()' </dev/urandom | head -c 20)"
password=${PASS:-}
[[ -n $password ]] || {
password="$(tr -dc 'A-Za-z0-9!?.,:;/*-+_()' </dev/urandom | head -c 32)"
echo "WARNING: Empty password detected, auto-generated password is used for ${USER:-admin}: ${password}" >&2
}
mkdir -p "$(dirname "${maincfg}")"
korvike -o "${maincfg}" <<EOF
HideVersion = true
LoadModule = webadmin
Skin = dark-clouds
Version = 1.8.2
<Listener l>
Port = {{ env "LISTEN_PORT" "16667" }}
IPv4 = {{ env "USE_IPV4" "true" }}
IPv6 = {{ env "USE_IPV6" "true" }}
SSL = false
</Listener>
<User {{ env "USER" "admin" }}>
Admin = true
Nick = {{ env "USER" "admin" }}
AltNick = {{ env "USER" "admin" }}_
Ident = {{ env "USER" "admin" }}
LoadModule = chansaver
LoadModule = controlpanel
<Pass password>
Hash = {{ hash "sha256" "${password}${password_salt}" }}
Method = SHA256
Salt = ${password_salt}
</Pass>
</User>
EOF
}
chown -R znc:znc /data
exec gosu znc znc -d /data -f