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Merge pull request #64 from theohbrothers/enhancement/bump-openvpn-2.…
…6.7-variants-to-2.6.8 Enhancement: Bump openvpn 2.6.7 variants to 2.6.8
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,11 @@ | ||
| FROM alpine:3.18 | ||
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| RUN set -eux; \ | ||
| apk add --no-cache openvpn~=2.6.8 iptables; \ | ||
| # Workaround openvpn --version exiting with non-zero exit code on openvpn <= 2.4.x | ||
| openvpn --version | grep -A100 -B100 2.6.8 | ||
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| COPY docker-entrypoint.sh /docker-entrypoint.sh | ||
| RUN chmod +x /docker-entrypoint.sh | ||
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| ENTRYPOINT ["/docker-entrypoint.sh"] |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| version: '2.1' | ||
| services: | ||
| openvpn-server: | ||
| build: | ||
| dockerfile: Dockerfile | ||
| context: . | ||
| environment: | ||
| - OPENVPN_CONFIG_FILE=/etc/openvpn/server.conf | ||
| - NAT_MASQUERADE=1 | ||
| # - CUSTOM_FIREWALL_SCRIPT=/etc/openvpn/firewall.sh | ||
| volumes: | ||
| - ./openvpn/server.conf:/etc/openvpn/server.conf | ||
| # - ./openvpn/firewall.sh:/etc/openvpn/firewall.sh | ||
| ports: | ||
| - 1194:1194/udp | ||
| cap_add: | ||
| - NET_ADMIN | ||
| # sysctls for the container if it is not set on the host. See: https://docs.docker.com/compose/compose-file/compose-file-v2/#sysctls | ||
| sysctls: | ||
| - net.ipv4.conf.all.forwarding=1 | ||
| # - net.ipv6.conf.all.disable_ipv6=0 | ||
| # - net.ipv6.conf.default.forwarding=1 | ||
| # - net.ipv6.conf.all.forwarding=1 | ||
| restart: unless-stopped | ||
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| openvpn-client: | ||
| build: | ||
| dockerfile: Dockerfile | ||
| context: . | ||
| environment: | ||
| - OPENVPN_CONFIG_FILE=/etc/openvpn/client.conf | ||
| - NAT_MASQUERADE=0 | ||
| # - CUSTOM_FIREWALL_SCRIPT=/etc/openvpn/firewall.sh | ||
| volumes: | ||
| - ./openvpn/client.conf:/etc/openvpn/client.conf | ||
| # - ./openvpn/firewall.sh:/etc/openvpn/firewall.sh | ||
| cap_add: | ||
| - NET_ADMIN | ||
| # sysctls for the container if it is not set on the host. See: https://docs.docker.com/compose/compose-file/compose-file-v2/#sysctls | ||
| sysctls: | ||
| - net.ipv4.conf.all.forwarding=1 | ||
| # - net.ipv6.conf.all.disable_ipv6=0 | ||
| # - net.ipv6.conf.default.forwarding=1 | ||
| # - net.ipv6.conf.all.forwarding=1 | ||
| restart: unless-stopped |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| #!/bin/sh | ||
| set -eu | ||
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| # Env vars | ||
| OPENVPN_CONFIG_FILE=${OPENVPN_CONFIG_FILE:-/etc/openvpn/server.conf} | ||
| OPENVPN_SERVER_CONFIG_FILE=${OPENVPN_SERVER_CONFIG_FILE:-} # Deprecated. For backward compatibility | ||
| OPENVPN_ROUTES=${OPENVPN_ROUTES:-} | ||
| NAT=${NAT:-1} | ||
| NAT_INTERFACE=${NAT_INTERFACE:-eth0} | ||
| NAT_MASQUERADE=${NAT_MASQUERADE:-1} | ||
| CUSTOM_FIREWALL_SCRIPT=${CUSTOM_FIREWALL_SCRIPT:-/etc/openvpn/firewall.sh} | ||
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| # Normalization | ||
| if [ -n "$OPENVPN_SERVER_CONFIG_FILE" ]; then | ||
| echo "Warning: OPENVPN_SERVER_CONFIG_FILE is deprecated. Use OPENVPN_CONFIG_FILE instead." | ||
| OPENVPN_CONFIG_FILE="$OPENVPN_SERVER_CONFIG_FILE" | ||
| fi | ||
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| # If no args are passed, run the entrypoint. If a flag is passed, run openvpn directly. Else, run the passed command | ||
| if [ "$#" -eq 0 ]; then | ||
| # Provision | ||
| echo "Provisioning tun device" | ||
| mkdir -p /dev/net | ||
| if [ ! -c /dev/net/tun ]; then | ||
| mknod /dev/net/tun c 10 200 | ||
| fi | ||
| if [ -f "$CUSTOM_FIREWALL_SCRIPT" ]; then | ||
| echo "Executing custom firewall script: $CUSTOM_FIREWALL_SCRIPT" | ||
| . "$CUSTOM_FIREWALL_SCRIPT" | ||
| else | ||
| echo "Not executing custom firewall script $CUSTOM_FIREWALL_SCRIPT because it does not exist" | ||
| fi | ||
| if [ "$NAT" = 1 ]; then | ||
| echo "NAT is enabled" | ||
| echo "Provisioning NAT iptables rules" | ||
| echo "NAT_INTERFACE: $NAT_INTERFACE" | ||
| if [ "$NAT_MASQUERADE" = 1 ]; then | ||
| echo "NAT_MASQUERADE is enabled" | ||
| iptables -t nat -C POSTROUTING -o "$NAT_INTERFACE" -j MASQUERADE > dev/null 2>&1 || iptables -t nat -A POSTROUTING -o "$NAT_INTERFACE" -j MASQUERADE | ||
| if [ -n "$OPENVPN_ROUTES" ]; then | ||
| echo "Provisioning NAT iptables rules for OPENVPN_ROUTES=$OPENVPN_ROUTES" | ||
| for r in $OPENVPN_ROUTES; do | ||
| iptables -t nat -C POSTROUTING -s "$r" -o "$NAT_INTERFACE" -j MASQUERADE > dev/null 2>&1 || iptables -t nat -A POSTROUTING -s "$r" -o "$NAT_INTERFACE" -j MASQUERADE | ||
| done | ||
| else | ||
| echo "Not provisioning route iptables rules because OPENVPN_ROUTES is empty" | ||
| fi | ||
| else | ||
| echo "Not provisioning NAT iptables rules because NAT_MASQUERADE is disabled." | ||
| fi | ||
| else | ||
| echo "NAT is disabled." | ||
| echo "Not adding NAT iptables rules" | ||
| fi | ||
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| echo "Listing iptables rules:" | ||
| iptables -L -nv | ||
| echo "Listing iptables NAT rules:" | ||
| iptables -L -nv -t nat | ||
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| # Generate the command line. openvpn man: https://openvpn.net/community-resources/reference-manual-for-openvpn-2-4/ | ||
| set openvpn --cd /etc/openvpn --config "$OPENVPN_CONFIG_FILE" | ||
| echo "openvpn command line: $@" | ||
| exec "$@" | ||
| elif [ "$#" -gt 0 ] && [ "${1#-}" != "$1" ]; then | ||
| echo "openvpn command line: $@" | ||
| exec openvpn "$@" | ||
| fi | ||
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| exec "$@" |
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