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Auto restore from keys #4

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Auto restore from keys #4

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03c17f7
`docker-compose up` and `docker build` work again
ramontayag Mar 28, 2018
a54654f
Restore from ELECTRUM_MASTER_PRIVATE_KEY or ELECTRUM_MASTER_PUBLIC_KEY
ramontayag Jan 20, 2018
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2 changes: 1 addition & 1 deletion Dockerfile
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@ FROM python:3.6-alpine

ARG BUILD_DATE
ARG VCS_REF
ARG VERSION
ARG VERSION=3.1.1
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This not needed, because actual version taken from VERSION file in root dir by Makefile.

LABEL maintainer="[email protected]" \
org.label-schema.build-date=$BUILD_DATE \
org.label-schema.name="Electrum wallet" \
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4 changes: 4 additions & 0 deletions README.md
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Expand Up @@ -69,6 +69,10 @@ curl --data-binary '{"id":"1","method":"listaddresses"}' http://electrum:electru

Always link electrum daemon to containers or bind to localhost directly and not expose 7000 port for security reasons.

### 12 Factor

You may also restore the wallet from a Master Private Key or Master Public Key by setting `ELECTRUM_MASTER_PRIVATE_KEY` or `ELECTRUM_MASTER_PUBLIC_KEY` env vars. This is useful in a setup like Kubernetes. If a wallet already exists, the master private key or the master public key will not be restored.

## API

* [Electrum protocol specs](http://docs.electrum.org/en/latest/protocol.html)
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2 changes: 2 additions & 0 deletions docker-compose.yml
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Expand Up @@ -7,3 +7,5 @@ services:
environment:
ELECTRUM_USER: electrum
ELECTRUM_PASSWORD: changeme
ELECTRUM_MASTER_PRIVATE_KEY: xprv9s21ZrQH143K2qhNXjGPHr6Rdz3h2N5dnt4sFspFnDqP8rPCXi5YPHq6hqQ2jSJb6XM4qwbfwMqxP5qsFRFRBKMPnE3WiAhFsBkVcMv2rYX
ELECTRUM_MASTER_PUBLIC_KEY: xpub661MyMwAqRbcFKmqdkoPez3AC1tBRpoVA6zU4GDsLZNN1eiM5FPnw69aZ6NbpahyLMsKeyjf2eqS64xSqYfsj9YWFWUpKtzbXmkLiAsRyCF
27 changes: 27 additions & 0 deletions docker-entrypoint.sh
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Expand Up @@ -15,6 +15,33 @@ electrum setconfig rpcport 7000
# Run application
electrum daemon start

echo "checking status"
electrum daemon status
echo "Done"

# Restore from keys if available
if [ -n "$ELECTRUM_MASTER_PRIVATE_KEY" ];
then
echo "Restoring and loading wallet from Master Private Key"
{
# && - do not stop script if command fails
echo | electrum restore $ELECTRUM_MASTER_PRIVATE_KEY
} || { # catch
echo "Wallet already exists; skipping..."
}
electrum daemon load_wallet
elif [ -n "$ELECTRUM_MASTER_PUBLIC_KEY" ];
then
echo "Restoring and loading wallet from Master Public Key"
{
# && - do not stop script if command fails
electrum restore $ELECTRUM_MASTER_PUBLIC_KEY
} || {
echo "Wallet already exists; skipping..."
}
electrum daemon load_wallet
fi

# Wait forever
while true; do
tail -f /dev/null & wait ${!}
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