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#!/usr/bin/env bash
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#
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# grafana-opensuse-ct.sh — interactive (whiptail) installer that provisions an
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# openSUSE LXC container on Proxmox and installs/configures Grafana inside it.
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#
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# Mimics the community-scripts.github.io/ProxmoxVE UX: a Default/Advanced menu,
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# whiptail prompts, then a scripted pct create + pct exec install flow.
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#
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# Run this ON the Proxmox host as root:
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# ./grafana-opensuse-ct.sh
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set -euo pipefail
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APP="Grafana"
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# ---------- helpers ----------
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msg_info() { echo -e "\e[1;34m[*]\e[0m $1"; }
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msg_ok() { echo -e "\e[1;32m[OK]\e[0m $1"; }
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msg_err() { echo -e "\e[1;31m[ERR]\e[0m $1" >&2; }
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die() { msg_err "$1"; exit 1; }
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command -v pct >/dev/null 2>&1 || die "pct not found — run this on a Proxmox VE host."
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command -v whiptail >/dev/null 2>&1 || { msg_info "whiptail not found, installing..."; apt-get update -qq && apt-get install -y whiptail; }
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# ---------- welcome + mode ----------
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whiptail --title "$APP LXC Installer" --msgbox \
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"This will create an openSUSE LXC container on this Proxmox host and install Grafana inside it." \
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10 65
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MODE=$(whiptail --title "$APP LXC Installer" --menu "Choose setup mode" 12 65 2 \
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"default" "Quick install — sane defaults, minimal prompts" \
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"advanced" "Advanced — customize every setting" \
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3>&1 1>&2 2>&3) || exit 1
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# ---------- gather settings ----------
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NEXTID=$(pvesh get /cluster/nextid)
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if [[ "$MODE" == "default" ]]; then
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CTID="$NEXTID"
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CT_HOSTNAME="grafana"
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CT_STORAGE=$(pvesm status -content rootdir | awk 'NR==2{print $1}')
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[[ -n "$CT_STORAGE" ]] || die "No rootdir-capable storage found."
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DISK_GB=8
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CORES=2
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MEMORY=1024
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SWAP=512
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BRIDGE="vmbr0"
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VLAN=""
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NET_MODE="dhcp"
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UNPRIVILEGED=1
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GRAFANA_PORT=3000
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ROOT_PASSWORD=$(tr -dc 'A-Za-z0-9' </dev/urandom | head -c 20)
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GRAFANA_ADMIN_PASSWORD=$(tr -dc 'A-Za-z0-9' </dev/urandom | head -c 20)
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SSH_PUBKEY_FILE=""
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else
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CTID=$(whiptail --inputbox "Container ID" 8 58 "$NEXTID" --title "$APP LXC" 3>&1 1>&2 2>&3) || exit 1
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CT_HOSTNAME=$(whiptail --inputbox "Hostname" 8 58 "grafana" --title "$APP LXC" 3>&1 1>&2 2>&3) || exit 1
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mapfile -t STORAGES < <(pvesm status -content rootdir | awk 'NR>1{print $1}')
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[[ ${#STORAGES[@]} -gt 0 ]] || die "No rootdir-capable storage found."
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RADIO_ARGS=(); first=1
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for s in "${STORAGES[@]}"; do
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if [[ $first -eq 1 ]]; then RADIO_ARGS+=("$s" "" ON); first=0; else RADIO_ARGS+=("$s" "" OFF); fi
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done
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CT_STORAGE=$(whiptail --radiolist "Storage for rootfs" 15 60 6 "${RADIO_ARGS[@]}" --title "$APP LXC" 3>&1 1>&2 2>&3) || exit 1
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DISK_GB=$(whiptail --inputbox "Disk size (GB)" 8 58 "8" --title "$APP LXC" 3>&1 1>&2 2>&3) || exit 1
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CORES=$(whiptail --inputbox "CPU cores" 8 58 "2" --title "$APP LXC" 3>&1 1>&2 2>&3) || exit 1
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MEMORY=$(whiptail --inputbox "Memory (MB)" 8 58 "1024" --title "$APP LXC" 3>&1 1>&2 2>&3) || exit 1
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SWAP=$(whiptail --inputbox "Swap (MB)" 8 58 "512" --title "$APP LXC" 3>&1 1>&2 2>&3) || exit 1
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mapfile -t BRIDGES < <(ip -o link show type bridge | awk -F': ' '{print $2}')
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[[ ${#BRIDGES[@]} -gt 0 ]] || die "No bridges found on this host."
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RADIO_ARGS=(); first=1
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for b in "${BRIDGES[@]}"; do
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if [[ $first -eq 1 ]]; then RADIO_ARGS+=("$b" "" ON); first=0; else RADIO_ARGS+=("$b" "" OFF); fi
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done
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BRIDGE=$(whiptail --radiolist "Network bridge" 15 60 6 "${RADIO_ARGS[@]}" --title "$APP LXC" 3>&1 1>&2 2>&3) || exit 1
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VLAN=$(whiptail --inputbox "VLAN tag (blank = untagged)" 8 58 "" --title "$APP LXC" 3>&1 1>&2 2>&3) || exit 1
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NET_MODE=$(whiptail --menu "Network mode" 12 58 2 \
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"dhcp" "DHCP" \
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"static" "Static IP" \
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--title "$APP LXC" 3>&1 1>&2 2>&3) || exit 1
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if [[ "$NET_MODE" == "static" ]]; then
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STATIC_IP_CIDR=$(whiptail --inputbox "IP/CIDR, e.g. 192.168.10.50/24" 8 58 "" --title "$APP LXC" 3>&1 1>&2 2>&3) || exit 1
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STATIC_GW=$(whiptail --inputbox "Gateway" 8 58 "" --title "$APP LXC" 3>&1 1>&2 2>&3) || exit 1
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fi
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if whiptail --title "$APP LXC" --yesno "Create as unprivileged container? (recommended)" 8 58; then
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UNPRIVILEGED=1
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else
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UNPRIVILEGED=0
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fi
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GRAFANA_PORT=$(whiptail --inputbox "Grafana HTTP port" 8 58 "3000" --title "$APP LXC" 3>&1 1>&2 2>&3) || exit 1
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ROOT_PASSWORD=$(whiptail --passwordbox "Root password for the CT" 8 58 --title "$APP LXC" 3>&1 1>&2 2>&3) || exit 1
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GRAFANA_ADMIN_PASSWORD=$(whiptail --passwordbox "Grafana admin password" 8 58 --title "$APP LXC" 3>&1 1>&2 2>&3) || exit 1
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SSH_PUBKEY_FILE=$(whiptail --inputbox "SSH public key file to inject (blank = skip)" 8 58 "$HOME/.ssh/id_rsa.pub" --title "$APP LXC" 3>&1 1>&2 2>&3) || exit 1
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fi
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pct status "$CTID" >/dev/null 2>&1 && die "CT $CTID already exists."
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# ---------- template ----------
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mapfile -t TEMPLATES < <(pveam available -section system | awk '{print $2}' | grep -i opensuse || true)
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if [[ ${#TEMPLATES[@]} -eq 0 ]]; then
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msg_info "Refreshing template index..."
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pveam update
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mapfile -t TEMPLATES < <(pveam available -section system | awk '{print $2}' | grep -i opensuse || true)
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fi
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[[ ${#TEMPLATES[@]} -gt 0 ]] || die "No openSUSE templates found in the Proxmox appliance list."
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if [[ "$MODE" == "default" ]]; then
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TEMPLATE="${TEMPLATES[-1]}" # newest listed
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else
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RADIO_ARGS=(); first=1
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for t in "${TEMPLATES[@]}"; do
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if [[ $first -eq 1 ]]; then RADIO_ARGS+=("$t" "" ON); first=0; else RADIO_ARGS+=("$t" "" OFF); fi
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done
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TEMPLATE=$(whiptail --radiolist "Choose openSUSE template" 20 72 10 "${RADIO_ARGS[@]}" --title "$APP LXC" 3>&1 1>&2 2>&3) || exit 1
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fi
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if ! pveam list local | grep -q "$TEMPLATE"; then
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msg_info "Downloading template $TEMPLATE..."
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pveam download local "$TEMPLATE"
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msg_ok "Template downloaded."
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fi
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# ---------- confirm ----------
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SUMMARY="CTID: $CTID
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Hostname: $CT_HOSTNAME
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Template: $TEMPLATE
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Storage: $CT_STORAGE (${DISK_GB}G)
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CPU/RAM: ${CORES} cores / ${MEMORY}MB (+${SWAP}MB swap)
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Bridge: $BRIDGE${VLAN:+ (vlan $VLAN)}
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Network: ${NET_MODE}${STATIC_IP_CIDR:+ $STATIC_IP_CIDR via $STATIC_GW}
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Priv: $([[ $UNPRIVILEGED -eq 1 ]] && echo unprivileged || echo privileged)
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Grafana: port $GRAFANA_PORT"
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whiptail --title "Confirm" --yesno "$SUMMARY
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Proceed?" 20 65 || exit 1
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# ---------- build net string ----------
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if [[ "$NET_MODE" == "static" ]]; then
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NET_STR="name=eth0,bridge=${BRIDGE},ip=${STATIC_IP_CIDR},gw=${STATIC_GW}"
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else
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NET_STR="name=eth0,bridge=${BRIDGE},ip=dhcp"
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fi
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[[ -n "$VLAN" ]] && NET_STR="${NET_STR},tag=${VLAN}"
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# ---------- create + start ----------
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CREATE_ARGS=(
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"$CTID" "local:vztmpl/${TEMPLATE}"
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--hostname "$CT_HOSTNAME"
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--cores "$CORES"
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--memory "$MEMORY"
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--swap "$SWAP"
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--rootfs "${CT_STORAGE}:${DISK_GB}"
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--net0 "$NET_STR"
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--unprivileged "$UNPRIVILEGED"
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--onboot 1
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--features "nesting=1"
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--password "$ROOT_PASSWORD"
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)
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[[ -n "${SSH_PUBKEY_FILE:-}" && -f "${SSH_PUBKEY_FILE:-}" ]] && CREATE_ARGS+=(--ssh-public-keys "$SSH_PUBKEY_FILE")
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msg_info "Creating CT $CTID ($CT_HOSTNAME)..."
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pct create "${CREATE_ARGS[@]}" >/dev/null
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msg_ok "Container created."
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msg_info "Starting CT $CTID..."
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pct start "$CTID"
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msg_info "Waiting for network..."
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for i in {1..30}; do
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pct exec "$CTID" -- sh -c "true" >/dev/null 2>&1 && pct exec "$CTID" -- ping -c1 -W2 1.1.1.1 >/dev/null 2>&1 && break
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sleep 2
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[[ $i -eq 30 ]] && die "CT never came up with network access."
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done
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msg_ok "Network is up."
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# ---------- install grafana inside the CT ----------
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run() { pct exec "$CTID" -- bash -c "$1"; }
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msg_info "Refreshing zypper repos..."
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run "zypper --non-interactive refresh" >/dev/null
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msg_ok "Repos refreshed."
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msg_info "Installing prerequisites (curl, gpg2, firewalld)..."
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run "zypper --non-interactive install curl gpg2 firewalld" >/dev/null
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msg_ok "Prerequisites installed."
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msg_info "Adding Grafana repo..."
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run "zypper -n ar --refresh https://rpm.grafana.com grafana || true"
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run "zypper --gpg-auto-import-keys --non-interactive refresh" >/dev/null
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msg_ok "Grafana repo added."
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msg_info "Installing Grafana..."
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run "zypper --non-interactive install grafana" >/dev/null
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msg_ok "Grafana installed."
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msg_info "Configuring Grafana (port ${GRAFANA_PORT}, admin password)..."
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run "sed -i '/^\[server\]/,/^\[/{s/^;\{0,1\}[[:space:]]*http_port[[:space:]]*=.*/http_port = ${GRAFANA_PORT}/}' /etc/grafana/grafana.ini"
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run "sed -i '/^\[security\]/,/^\[/{s/^;\{0,1\}[[:space:]]*admin_password[[:space:]]*=.*/admin_password = ${GRAFANA_ADMIN_PASSWORD}/}' /etc/grafana/grafana.ini"
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msg_ok "Grafana configured."
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msg_info "Enabling firewalld and opening ports 22/${GRAFANA_PORT}..."
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run "systemctl enable --now firewalld" >/dev/null
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run "firewall-cmd --permanent --add-port=22/tcp" >/dev/null
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run "firewall-cmd --permanent --add-port=${GRAFANA_PORT}/tcp" >/dev/null
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run "firewall-cmd --reload" >/dev/null
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msg_ok "Firewall configured."
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msg_info "Starting Grafana..."
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run "systemctl enable --now grafana-server" >/dev/null
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msg_info "Waiting for Grafana to answer..."
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for i in {1..15}; do
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run "curl -sf http://localhost:${GRAFANA_PORT}/api/health >/dev/null" && break
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sleep 3
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[[ $i -eq 15 ]] && die "Grafana did not come up in time — check: pct exec $CTID -- systemctl status grafana-server"
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done
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msg_ok "Grafana is up."
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# ---------- summary ----------
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CT_IP=$(pct exec "$CTID" -- hostname -I 2>/dev/null | awk '{print $1}')
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whiptail --title "$APP LXC Installer — Done" --msgbox \
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"Grafana is running.
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CT ID: $CTID
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URL: http://${CT_IP}:${GRAFANA_PORT}
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User: admin
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Password: ${GRAFANA_ADMIN_PASSWORD}
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Root pass: ${ROOT_PASSWORD}
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(also printed below in the terminal)" 16 65
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cat <<EOF
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========================================
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$APP LXC ready
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========================================
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CT ID: $CTID
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URL: http://${CT_IP}:${GRAFANA_PORT}
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Admin user: admin
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Admin pass: ${GRAFANA_ADMIN_PASSWORD}
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Root pass: ${ROOT_PASSWORD}
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========================================
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EOF
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