add scripts, genesis file, k8s deployment scaffold

geth_and_k8s/scripts/entrypoint.sh

@@ -0,0 +1,69 @@
+#!/usr/bin/env bash
+
+set -ex
+
+GETH_DATADIR=${GETH_DATADIR:-"/data"}
+
+geth_init() {
+    ls -al "$GETH_DATADIR"
+
+    if [[ -d "$GETH_DATADIR/keystore" ]]; then
+        echo "Chain already initialized"
+        return 0
+    fi
+
+    echo "Initializing using Genesis"
+    geth init --datadir "$GETH_DATADIR" /genesis.json
+}
+
+geth_custom_start() {
+    echo "Starting node with custom arguments $@"
+    exec geth $@
+}
+
+geth_normal_start() {
+    echo "Starting node"
+    local identity=${GETH_IDENTITY:-"<docker container alias>"}
+    local http_corsdomain=${GETH_HTTP_CORSDOMAIN:-"http://localhost:3000"}
+    local http_vhosts=${GETH_HTTP_VHOSTS:-"localhost"}
+    local networkid=${GETH_NETWORKID:-"137"}
+    local enable_mining=${ENABLING_MINING:-"YES"}
+
+    local mining_args=""
+    if [[ "$enable_mining" == "YES" ]]; then
+        local miner_etherbase=${GETH_MINER_ETHERBASE:-"<add etherbase>"}
+        local miner_threads=${GETH_MINER_THREADS:-1}
+        mining_args="$mining_args --mine"
+        mining_args="$mining_args --miner.threads $miner_threads"
+        mining_args="$mining_args --miner.etherbase $miner_etherbase"
+    fi
+
+    exec geth \
+        --identity "$identity" \
+        --nodiscover \
+        --http \
+        --http.addr 0.0.0.0 \
+        --http.corsdomain "$http_corsdomain" \
+        --http.vhosts "$http_vhosts" \
+        --networkid "$networkid" \
+        --datadir "$GETH_DATADIR" \
+        $mining_args \
+        "$@"
+}
+
+main() {
+    local should_initialize=${SHOULD_INITIALIZE:-"YES"}
+    local custom_start=${CUSTOM_START:-"NO"}
+
+    if [[ "$should_initialize" == "YES" ]]; then
+        geth_init
+    fi
+
+    if [[ "$custom_start" == "YES" ]]; then
+        geth_custom_start "$@"
+    else
+        geth_normal_start "$@"
+    fi
+}
+
+main "$@"