aca23ad834
* Symlink /etc/resolve.conf to systemd-resolved's stub Since systemd-resolved is managing the DNS configuration, ensure that /etc/resolv.conf uses it. * Use systemd-resolved from Docker containers
22 lines
773 B
Bash
22 lines
773 B
Bash
echo "Configure Docker to use the host's DNS resolver"
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# If the daemon configuration has been changed since we wrote it, leave it as-is
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ORIGINAL_CONFIG='{"log-driver":"json-file","log-opts":{"max-size":"10m","max-file":"5"}}'
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NEW_CONFIG='{
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"log-driver": "json-file",
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"log-opts": { "max-size": "10m", "max-file": "5" },
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"dns": ["172.17.0.1"],
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"bip": "172.17.0.1/16"
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}'
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if grep -Fq "$ORIGINAL_CONFIG" /etc/docker/daemon.json 2>/dev/null; then
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echo "$NEW_CONFIG" | sudo tee /etc/docker/daemon.json >/dev/null
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fi
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# Expose systemd-resolved to our Docker network
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echo -e '[Resolve]\nDNSStubListenerExtra=172.17.0.1' | sudo tee /etc/systemd/resolved.conf.d/20-docker-dns.conf >/dev/null
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sudo systemctl restart systemd-resolved
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sudo systemctl restart docker
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