minor bug fixes, iscsi multipath/device-mapper support

This commit is contained in:
Travis Glenn Hansen
2020-11-28 22:56:28 -07:00
parent c4a36750cd
commit 5076ca3664
3 changed files with 391 additions and 125 deletions
+144 -2
View File
@@ -48,14 +48,156 @@ class Filesystem {
const device_path = await filesystem.realpath(device);
const blockdevices = await filesystem.getAllBlockDevices();
return blockdevices.some((i) => {
if (i.path == device_path) {
return blockdevices.some(async (i) => {
if ((await filesystem.realpath(i.path)) == device_path) {
return true;
}
return false;
});
}
/**
* Attempt to discover if the device is a device-mapper device
*
* @param {*} device
*/
async isDeviceMapperDevice(device) {
const filesystem = this;
const isBlock = await filesystem.isBlockDevice(device);
if (!isBlock) {
return false;
}
device = await filesystem.realpath(device);
return device.includes("dm-");
}
async isDeviceMapperSlaveDevice(device) {
const filesystem = this;
device = await filesystem.realpath(device);
}
/**
* Get all device-mapper devices (ie: dm-0, dm-1, dm-N...)
*/
async getAllDeviceMapperDevices() {
const filesystem = this;
let result;
let devices = [];
let args = [
"-c",
'for file in $(ls -la /dev/mapper/* | grep "\\->" | grep -oP "\\-> .+" | grep -oP " .+"); do echo $(F=$(echo $file | grep -oP "[a-z0-9-]+");echo $F":"$(ls "/sys/block/${F}/slaves/");); done;',
];
try {
result = await filesystem.exec("sh", args);
for (const dm of result.stdout.trim().split("\n")) {
devices.push("/dev/" + dm.split(":")[0].trim());
}
return devices;
} catch (err) {
throw err;
}
}
async getAllDeviceMapperSlaveDevices() {
const filesystem = this;
let result;
let args = [
"-c",
'for file in $(ls -la /dev/mapper/* | grep "\\->" | grep -oP "\\-> .+" | grep -oP " .+"); do echo $(F=$(echo $file | grep -oP "[a-z0-9-]+");echo $F":"$(ls "/sys/block/${F}/slaves/");); done;',
];
let slaves = [];
try {
result = await filesystem.exec("sh", args);
for (const dm of result.stdout.trim().split("\n")) {
const realDevices = dm
.split(":")[1]
.split(" ")
.map((value) => {
return "/dev/" + value.trim();
});
slaves.push(...realDevices);
}
return slaves;
} catch (err) {
throw err;
}
}
/**
* Get all slave devices connected to a device-mapper device
*
* @param {*} device
*/
async getDeviceMapperDeviceSlaves(device) {
const filesystem = this;
device = await filesystem.realpath(device);
let device_info = await filesystem.getBlockDevice(device);
const slaves = [];
let result;
let args = [`/sys/block/${device_info.kname}/slaves/`];
try {
result = await filesystem.exec("ls", args);
for (const entry of result.stdout.split("\n")) {
if (entry.trim().length < 1) {
continue;
}
slaves.push("/dev/" + entry.trim());
}
return slaves;
} catch (err) {
throw err;
}
}
async getDeviceMapperDeviceFromSlaves(slaves, matchAll = true) {
const filesystem = this;
let result;
// get mapping of dm devices to real devices
let args = [
"-c",
'for file in $(ls -la /dev/mapper/* | grep "\\->" | grep -oP "\\-> .+" | grep -oP " .+"); do echo $(F=$(echo $file | grep -oP "[a-z0-9-]+");echo $F":"$(ls "/sys/block/${F}/slaves/");); done;',
];
result = await filesystem.exec("sh", args);
for (const dm of result.stdout.trim().split("\n")) {
const dmDevice = "/dev/" + dm.split(":")[0].trim();
const realDevices = dm
.split(":")[1]
.split(" ")
.map((value) => {
return "/dev/" + value.trim();
});
const intersectDevices = slaves.filter((value) =>
realDevices.includes(value)
);
if (matchAll === false && intersectDevices.length > 0) {
return dmDevice;
}
// if all 3 have the same elements we have a winner
if (
intersectDevices.length == realDevices.length &&
realDevices.length == slaves.length
) {
return dmDevice;
}
}
}
/**
* create symlink
*
+29 -24
View File
@@ -25,7 +25,7 @@ class ISCSI {
if (!options.executor) {
options.executor = {
spawn: cp.spawn
spawn: cp.spawn,
};
}
@@ -47,7 +47,7 @@ class ISCSI {
const entries = result.stdout.trim().split("\n");
const interfaces = [];
let fields;
entries.forEach(entry => {
entries.forEach((entry) => {
fields = entry.split(" ");
interfaces.push({
iface_name: fields[0],
@@ -55,7 +55,7 @@ class ISCSI {
hwaddress: getIscsiValue(fields[1].split(",")[1]),
ipaddress: getIscsiValue(fields[1].split(",")[2]),
net_ifacename: getIscsiValue(fields[1].split(",")[3]),
initiatorname: getIscsiValue(fields[1].split(",")[4])
initiatorname: getIscsiValue(fields[1].split(",")[4]),
});
});
@@ -75,7 +75,7 @@ class ISCSI {
const entries = result.stdout.trim().split("\n");
const i = {};
let fields, key, value;
entries.forEach(entry => {
entries.forEach((entry) => {
if (entry.startsWith("#")) return;
fields = entry.split("=");
key = fields[0].trim();
@@ -103,7 +103,7 @@ class ISCSI {
"-p",
portal,
"-o",
"new"
"new",
]);
await iscsi.exec(options.paths.iscsiadm, args);
for (let attribute in attributes) {
@@ -120,7 +120,7 @@ class ISCSI {
"--name",
attribute,
"--value",
attributes[attribute]
attributes[attribute],
]);
await iscsi.exec(options.paths.iscsiadm, args);
}
@@ -142,7 +142,7 @@ class ISCSI {
"-p",
portal,
"-o",
"delete"
"delete",
]);
await iscsi.exec(options.paths.iscsiadm, args);
},
@@ -174,7 +174,7 @@ class ISCSI {
const entries = result.stdout.trim().split("\n");
const sessions = [];
let fields;
entries.forEach(entry => {
entries.forEach((entry) => {
fields = entry.split(" ");
sessions.push({
protocol: entry.split(":")[0],
@@ -182,7 +182,7 @@ class ISCSI {
portal: fields[2].split(",")[0],
target_portal_group_tag: fields[2].split(",")[1],
iqn: fields[3].split(":")[0],
target: fields[3].split(":")[1]
target: fields[3].split(":")[1],
});
});
@@ -212,6 +212,7 @@ class ISCSI {
return [];
}
let currentTarget;
let sessionGroups = [];
let currentSession = [];
@@ -221,13 +222,21 @@ class ISCSI {
entries.shift();
entries.shift();
// this should break up the lines into groups of lines
// where each group is the full details of a single session
// note that the output of the command bundles/groups all sessions
// by target so extra logic is needed to hanle that
// alternatively we could get all sessions using getSessions()
// and then invoke `iscsiadm -m session -P 3 -r <session id>` in a loop
for (let i = 0; i < entries.length; i++) {
let entry = entries[i];
if (entry.startsWith("Target:")) {
currentTarget = entry;
} else if (entry.trim().startsWith("Current Portal:")) {
if (currentSession.length > 0) {
sessionGroups.push(currentSession);
}
currentSession = [entry];
currentSession = [currentTarget, entry];
} else {
currentSession.push(entry);
}
@@ -261,11 +270,7 @@ class ISCSI {
.trim()
.replace(/ /g, "_")
.replace(/\W/g, "");
let value = line
.split(":")
.slice(1)
.join(":")
.trim();
let value = line.split(":").slice(1).join(":").trim();
if (currentSection) {
session[currentSection] = session[currentSection] || {};
@@ -282,7 +287,7 @@ class ISCSI {
.split(":")
.slice(1)
.join(":")
.trim()
.trim(),
};
while (
sessionLines[j + 1] &&
@@ -308,7 +313,7 @@ class ISCSI {
.split(":")
.slice(1)
.join(":")
.trim()
.trim(),
});
}
@@ -322,7 +327,7 @@ class ISCSI {
key = key.charAt(0).toLowerCase() + key.slice(1);
key = key.replace(
/[A-Z]/g,
letter => `_${letter.toLowerCase()}`
(letter) => `_${letter.toLowerCase()}`
);
break;
}
@@ -367,12 +372,12 @@ class ISCSI {
const entries = result.stdout.trim().split("\n");
const targets = [];
entries.forEach(entry => {
entries.forEach((entry) => {
targets.push({
portal: entry.split(",")[0],
target_portal_group_tag: entry.split(" ")[0].split(",")[1],
iqn: entry.split(" ")[1].split(":")[0],
target: entry.split(" ")[1].split(":")[1]
target: entry.split(" ")[1].split(":")[1],
});
});
@@ -432,7 +437,7 @@ class ISCSI {
}
return true;
}
},
};
}
@@ -460,15 +465,15 @@ class ISCSI {
}
return new Promise((resolve, reject) => {
child.stdout.on("data", function(data) {
child.stdout.on("data", function (data) {
stdout = stdout + data;
});
child.stderr.on("data", function(data) {
child.stderr.on("data", function (data) {
stderr = stderr + data;
});
child.on("close", function(code) {
child.on("close", function (code) {
const result = { code, stdout, stderr };
if (timeout) {
clearTimeout(timeout);